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1031 vulnerabilities by FFmpeg
CVE-2026-75147 (GCVE-0-2026-75147)
Vulnerability from cvelistv5 – Published: 2026-08-19 16:29 – Updated: 2026-08-19 16:29 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg Out-of-Bounds Read in AV1 RTP Packetizer via rtpenc_av1.c
Summary
FFmpeg before commit 983dae9 contains an out-of-bounds read in the AV1 RTP packetizer (libavformat/rtpenc_av1.c). The keyframe detection loop that searches for a sequence header OBU advanced its pointer and remaining-size counter by the encoded header length plus the OBU payload size without first bounding the OBU size against the remaining data. A crafted OBU size causes the remaining-size counter to wrap to a positive value, causing the next loop iteration to dereference a pointer beyond the end of the packet buffer. A crafted AV1 input packet muxed to RTP triggers the out-of-bounds read.
Severity
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24096 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/983d… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-out-o… | third-party-advisory |
Impacted products
Date Public
2026-08-04 00:00
{
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}
],
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"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
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"attackVector": "LOCAL",
"baseScore": 6.9,
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CVE-2026-75146 (GCVE-0-2026-75146)
Vulnerability from cvelistv5 – Published: 2026-08-19 16:28 – Updated: 2026-08-19 16:28 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg Out-of-Bounds Read in DASH Demuxer via dashdec.c
Summary
FFmpeg before commit 65b0dab contains an out-of-bounds read in the DASH demuxer (libavformat/dashdec.c). When a live DASH manifest is refreshed with a startNumber that is lower than the previous value, the current sequence number is driven negative. The fragment retrieval function checked only the upper bound before indexing the fragments array, allowing a negative index to be used and causing an out-of-bounds read. A malicious or misconfigured DASH server can trigger this by serving a live manifest with a decreasing startNumber across a manifest refresh.
Severity
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24093 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/65b0… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-out-o… | third-party-advisory |
Impacted products
Date Public
2026-08-04 00:00
{
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}
],
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"privilegesRequired": "NONE",
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CVE-2026-75145 (GCVE-0-2026-75145)
Vulnerability from cvelistv5 – Published: 2026-08-19 16:27 – Updated: 2026-08-19 16:27 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg Integer Narrowing Conversion OOB Memory Access in AV1 RTP Packetizer
Summary
FFmpeg before commit b4c199c contains an incorrect integer narrowing conversion in the AV1 RTP packetizer (libavformat/rtpenc_av1.c). The OBU size is cast to long before comparison against the remaining frame size. On targets where long is 32 bits, including 64-bit Windows, sufficiently large OBU size values are sign-flipped by the narrowing cast, producing a negative value that passes the payload size check. This allows an oversized OBU to bypass the safety bound on affected platforms, leading to out-of-bounds memory access when the oversized value is subsequently used as a copy length.
Severity
5.8 (Medium)
CWE
- CWE-681 - Incorrect Conversion between Numeric Types
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24090 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/b4c1… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-integ… | third-party-advisory |
Impacted products
Date Public
2026-08-04 00:00
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"packageURL": "pkg:github/FFmpeg/FFmpeg",
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CVE-2026-75144 (GCVE-0-2026-75144)
Vulnerability from cvelistv5 – Published: 2026-08-19 16:26 – Updated: 2026-08-19 16:26 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg Heap Buffer Overflow in VC-2/Dirac RTP Packetizer
Summary
FFmpeg before commit 1cdeb3c contains a heap buffer overflow vulnerability in the VC-2/Dirac RTP packetizer (libavformat/rtpenc_vc2hq.c) that allows attackers to trigger memory corruption by supplying a crafted Dirac data unit. The packetizer copies an input-derived data unit or fragment size into a fixed-size buffer without an upper bound check, causing a heap buffer overflow when the crafted input is packetized for RTP output.
Severity
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24091 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/1cde… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-heap-… | third-party-advisory |
Impacted products
Date Public
2026-08-04 00:00
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CVE-2026-75143 (GCVE-0-2026-75143)
Vulnerability from cvelistv5 – Published: 2026-08-19 16:26 – Updated: 2026-08-19 16:26 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg Heap Buffer Overflow via RIST Protocol Reader
Summary
FFmpeg before commit 1c10bcc contains a heap buffer overflow in the RIST protocol reader (libavformat/librist.c). librist_read() ignored its size argument and copied the full received payload length into the caller-provided destination buffer, overflowing it when the payload exceeds the destination size. This is reachable via the async:rist:// URL scheme, where the async wrapper supplies a smaller buffer than the received payload. A remote RIST sender can trigger the overflow by sending a packet whose payload exceeds the caller buffer size.
Severity
9.8 (Critical)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24089 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/1c10… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-heap-… | third-party-advisory |
Impacted products
Date Public
2026-08-04 00:00
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CVE-2026-75142 (GCVE-0-2026-75142)
Vulnerability from cvelistv5 – Published: 2026-08-19 16:24 – Updated: 2026-08-19 16:24 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg Stack Buffer Overflow in MPEG-PS Muxer via mpegenc.c
Summary
FFmpeg before commit 9d786e4 contains a stack buffer overflow in the MPEG-PS muxer (libavformat/mpegenc.c). When muxing input with more streams than the muxer's fixed-size stack buffer accommodates, the buffer is overflowed. A crafted input with an excessive number of streams triggers the overflow during MPEG-PS muxing.
Severity
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24087 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/9d78… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-stack… | third-party-advisory |
Impacted products
Date Public
2026-08-04 00:00
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CVE-2026-75141 (GCVE-0-2026-75141)
Vulnerability from cvelistv5 – Published: 2026-08-19 16:24 – Updated: 2026-08-19 16:24 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg Heap Buffer Overflow in hvcC Box Writer via HEVC Muxing
Summary
FFmpeg before commit acf5d7c contains a heap buffer overflow in the hvcC box writer. When writing an HEVC configuration record with more NAL units of a single type than the count field can represent, the NAL unit count overflows, causing a heap buffer overflow. A crafted HEVC input file triggers the overflow during muxing.
Severity
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24088 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/acf5… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-heap-… | third-party-advisory |
Impacted products
Date Public
2026-08-04 00:00
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CVE-2026-70632 (GCVE-0-2026-70632)
Vulnerability from cvelistv5 – Published: 2026-08-06 21:26 – Updated: 2026-08-14 16:51 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg 4.4 < 9.0 Heap Out-of-Bounds Write in CFHD Decoder via AVI Demuxing
Summary
FFmpeg versions from 4.4 up to, but not including, 9.0 contain an out-of-bounds heap write vulnerability in the native GoPro CineForm HD (CFHD) decoder that allows remote attackers to corrupt heap memory by supplying a crafted AVI file during stream probing. The cfhd_decode() function fails to enforce the non-Bayer logical output-width invariant in the transform-type-2 reconstruction path, causing horiz_filter_clip() to write oversized 16-bit sample rows far beyond the allocated output frame buffer, which can be escalated to arbitrary code execution via overwrite of a live cleanup callback pointer.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-07 17:19 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23898 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/1006… | related |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/db05… | patch |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/16b2… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-heap-… | third-party-advisory |
Impacted products
Date Public
2026-07-24 00:00
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CVE-2026-70631 (GCVE-0-2026-70631)
Vulnerability from cvelistv5 – Published: 2026-08-06 21:25 – Updated: 2026-08-14 16:51 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg 0.5 < 9.0 Uninitialized Heap Memory Read in TIFF Decoder
Summary
FFmpeg versions from 0.5 up to, but not including, 9.0 contain an uninitialized heap memory disclosure vulnerability in the native TIFF decoder in libavcodec/tiff.c. An attacker who can cause FFmpeg to decode a crafted TIFF file can supply a valid Deflate-compressed strip that terminates successfully after producing fewer bytes than the declared strip requires. The tiff_unpack_zlib() function allocates a heap buffer sized for the full declared strip but copies all declared rows via memcpy() regardless of how many bytes zlib actually decompressed, causing unwritten bytes that can contain stale data from prior heap allocations to be incorporated into decoded image output and potentially exposing sensitive data in persistent services.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-08 02:44 UTC
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23899 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/a991… | related |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/2f23… | patch |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/3c28… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-unini… | third-party-advisory |
Impacted products
Date Public
2026-07-24 00:00
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CVE-2026-70630 (GCVE-0-2026-70630)
Vulnerability from cvelistv5 – Published: 2026-08-06 21:25 – Updated: 2026-08-14 16:51 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg 3.0 < 9.0 Uninitialized Heap Memory Read in Screenpresso Decoder
Summary
FFmpeg versions from 3.0 up to, but not including, 9.0 contain an uninitialized heap memory read vulnerability in the native Screenpresso decoder (libavcodec/screenpresso.c) that allows attackers to recover sensitive memory contents by supplying a crafted SPV1 packet with a valid zlib stream that decompresses fewer bytes than the full frame requires. The screenpresso_decode_frame() function fails to validate the produced byte count before calling av_image_copy_plane() to copy the complete frame dimensions from the persistent ctx->inflated_buf buffer, causing unwritten heap memory from prior allocations or prior frames to be copied into decoded output and potentially exposing sensitive data such as userspace addresses from persistent decoding services.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-07 17:09 UTC
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23896 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/9a32… | related |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/7058… | patch |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/c226… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-unini… | third-party-advisory |
Impacted products
Date Public
2026-07-24 00:00
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CVE-2026-70629 (GCVE-0-2026-70629)
Vulnerability from cvelistv5 – Published: 2026-08-06 21:25 – Updated: 2026-08-14 16:51 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg 3.0 < 9.0 Uninitialized Heap Memory Read in RSCC Decoder
Summary
FFmpeg versions from 3.0 up to, but not including, 9.0 contain an uninitialized heap memory read vulnerability in the native RSCC decoder (libavcodec/rscc.c) that allows attackers to disclose heap memory contents by supplying a crafted video file with a compressed tile that decompresses fewer bytes than the declared tile geometry requires. When rscc_decode_frame() calls av_image_copy_plane() without validating the decompressed byte count against the tile dimensions, the unwritten suffix of the persistent intermediate buffer ctx->inflated_buf is copied into the decoded frame, potentially exposing data from prior heap allocations or previous decoded frames in persistent decoding services.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-07 16:15 UTC
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23895 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/533a… | related |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/cd1f… | patch |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/a5fe… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-unini… | third-party-advisory |
Impacted products
Date Public
2026-07-24 00:00
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CVE-2026-70628 (GCVE-0-2026-70628)
Vulnerability from cvelistv5 – Published: 2026-08-06 21:24 – Updated: 2026-08-14 16:51 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg 0.5 < 9.0 DVB Subtitle Parser Heap Buffer Overflow via WTV File
Summary
FFmpeg versions from 0.5 up to, but not including, 9.0 contain a signed integer overflow vulnerability in the DVB subtitle parser in libavcodec/dvbsub_parser.c that allows attackers to trigger a heap buffer overflow by supplying a crafted WTV file. The overflow causes the bounds-check guard expression to wrap to INT_MIN, bypassing the PARSE_BUF_SIZE comparison and invoking memcpy() with attacker-controlled data into a heap buffer, resulting in an out-of-bounds heap write and potential memory corruption or code execution.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-07 14:57 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23897 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/c6ec… | related |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/93f2… | patch |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/02fc… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-dvb-s… | third-party-advisory |
Impacted products
Date Public
2026-07-24 00:00
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CVE-2026-66041 (GCVE-0-2026-66041)
Vulnerability from cvelistv5 – Published: 2026-07-24 19:54 – Updated: 2026-07-29 03:55 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg 7.0 - 8.1.2 Heap Out-of-Bounds Write via vf_quirc Filter
Summary
FFmpeg 7.0 through 8.1.2, fixed in commit 4da9812, contains a heap out-of-bounds write vulnerability in the vf_quirc filter that allows an attacker to corrupt heap memory by supplying a crafted PGS/SUP subtitle file with mismatched frame dimensions. Attackers can provide a subtitle file whose second presentation has larger dimensions than its first, causing av_image_copy_plane() to copy data exceeding the initial allocation size into the undersized libquirc grayscale image buffer, resulting in heap corruption and process crash with potential for code execution.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 00:00 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23625 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/4da9… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-heap-… | third-party-advisory |
Impacted products
Date Public
2026-07-04 00:00
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CVE-2026-66040 (GCVE-0-2026-66040)
Vulnerability from cvelistv5 – Published: 2026-07-24 19:46 – Updated: 2026-07-29 03:55 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg Heap Out-of-Bounds Write via PNG/APNG eXIf Encoder
Summary
FFmpeg through 8.1.2, fixed in commit b506faf, contains a heap out-of-bounds write vulnerability in the native PNG and APNG encoders that allows remote attackers to corrupt heap memory by supplying a crafted PNG image with a malicious eXIf chunk. Attackers can craft an eXIf chunk where multiple IFD entries reference the same large value payload, causing canonical serialization to expand the output far beyond the undersized allocation estimated by add_exif_profile_size(), resulting in png_write_chunk() writing tens of thousands of bytes past the buffer boundary, leading to deterministic heap corruption, process crash, and potentially arbitrary code execution.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 00:00 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23786 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/b506… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-heap-… | third-party-advisory |
Impacted products
Date Public
2026-07-21 00:00
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CVE-2026-66039 (GCVE-0-2026-66039)
Vulnerability from cvelistv5 – Published: 2026-07-24 19:42 – Updated: 2026-07-29 03:55 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg MACE6 Audio Decoder Heap Out-of-Bounds Write via CAF File
Summary
FFmpeg through 8.1.2, fixed in commit aafb5c6, contains a signed integer overflow vulnerability in the MACE6 audio decoder that allows attackers to corrupt heap memory by supplying a crafted CAF file with a malicious bytes_per_packet value. Attackers can craft a CAF file with oversized bytes_per_packet and frames_per_packet values in the desc chunk to trigger an integer overflow in mace_decode_frame() during output sample count computation, resulting in an undersized buffer allocation and heap out-of-bounds write that could enable code execution.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 00:00 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23631 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/aafb… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-mace6… | third-party-advisory |
Impacted products
Date Public
2026-07-02 00:00
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CVE-2026-66038 (GCVE-0-2026-66038)
Vulnerability from cvelistv5 – Published: 2026-07-24 19:39 – Updated: 2026-07-28 01:06 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg LCL/ZLIB Video Decoder Information Disclosure via lcldec.c
Summary
FFmpeg through 8.1.2, fixed in commit 8670835, contains an information disclosure vulnerability in the LCL/ZLIB video decoder that allows attackers to expose uninitialized heap memory by supplying a valid zlib stream that inflates to fewer bytes than the expected frame size. The zlib_decomp() function in lcldec.c treats short decompression as non-fatal and continues to the RGB24 conversion path, which copies a full frame's worth of rows from the allocation buffer using original frame dimensions, causing uninitialized heap contents including pointer-derived allocator bytes to be copied into the attacker-observable AVFrame output and potentially defeating ASLR in long-lived media processing services.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-24 20:14 UTC
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23626 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/e7cb… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-lcl-z… | third-party-advisory |
Impacted products
Date Public
2026-07-04 00:00
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CVE-2026-66037 (GCVE-0-2026-66037)
Vulnerability from cvelistv5 – Published: 2026-07-24 19:36 – Updated: 2026-07-28 01:06 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg IAMF Demuxer Uncontrolled Resource Consumption via mix_presentation_obu()
Summary
FFmpeg through 8.1.2, fixed in commit 5d7112c, contains an uncontrolled resource consumption vulnerability in the IAMF demuxer that allows an unauthenticated attacker to cause multi-gigabyte memory allocation from a 17-byte input file by supplying a crafted count_label field. The mix_presentation_obu() function in libavformat/iamf_parse.c calls av_calloc(count_label, sizeof(*language_label)) with an attacker-controlled value before validating available OBU data, enabling an allocation amplification of approximately 126 million bytes per input byte that exhausts process memory or triggers an OOM-kill during format probing.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-27 16:15 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23627 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/8670… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-iamf-… | third-party-advisory |
Impacted products
Date Public
2026-06-28 00:00
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CVE-2026-66036 (GCVE-0-2026-66036)
Vulnerability from cvelistv5 – Published: 2026-07-24 19:34 – Updated: 2026-07-29 03:55 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg Heap Out-of-Bounds Write in vf_hqdn3d Filter
Summary
FFmpeg through 8.1.2, fixed in commit 5d7112c, contains a heap out-of-bounds write vulnerability in the vf_hqdn3d filter that allows attackers to corrupt heap memory by supplying a crafted video whose frame resolution increases between frames when filtergraph reinitialization is disabled via the -reinit_filter 0 option. Attackers can provide a malicious video input where vf_hqdn3d.config_input() allocates undersized per-plane line-history buffers based on the initial frame width, and subsequent larger frames cause denoise_spatial() to write beyond the allocation boundary, resulting in heap memory corruption.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 00:00 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23783 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/5d71… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-heap-… | third-party-advisory |
Impacted products
Date Public
2026-07-21 00:00
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CVE-2026-70632 (GCVE-0-2026-70632)
Vulnerability from nvd – Published: 2026-08-06 21:26 – Updated: 2026-08-14 16:51 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg 4.4 < 9.0 Heap Out-of-Bounds Write in CFHD Decoder via AVI Demuxing
Summary
FFmpeg versions from 4.4 up to, but not including, 9.0 contain an out-of-bounds heap write vulnerability in the native GoPro CineForm HD (CFHD) decoder that allows remote attackers to corrupt heap memory by supplying a crafted AVI file during stream probing. The cfhd_decode() function fails to enforce the non-Bayer logical output-width invariant in the transform-type-2 reconstruction path, causing horiz_filter_clip() to write oversized 16-bit sample rows far beyond the allocated output frame buffer, which can be escalated to arbitrary code execution via overwrite of a live cleanup callback pointer.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-07 17:19 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23898 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/1006… | related |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/db05… | patch |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/16b2… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-heap-… | third-party-advisory |
Impacted products
Date Public
2026-07-24 00:00
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CVE-2026-70631 (GCVE-0-2026-70631)
Vulnerability from nvd – Published: 2026-08-06 21:25 – Updated: 2026-08-14 16:51 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg 0.5 < 9.0 Uninitialized Heap Memory Read in TIFF Decoder
Summary
FFmpeg versions from 0.5 up to, but not including, 9.0 contain an uninitialized heap memory disclosure vulnerability in the native TIFF decoder in libavcodec/tiff.c. An attacker who can cause FFmpeg to decode a crafted TIFF file can supply a valid Deflate-compressed strip that terminates successfully after producing fewer bytes than the declared strip requires. The tiff_unpack_zlib() function allocates a heap buffer sized for the full declared strip but copies all declared rows via memcpy() regardless of how many bytes zlib actually decompressed, causing unwritten bytes that can contain stale data from prior heap allocations to be incorporated into decoded image output and potentially exposing sensitive data in persistent services.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-08 02:44 UTC
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23899 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/a991… | related |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/2f23… | patch |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/3c28… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-unini… | third-party-advisory |
Impacted products
Date Public
2026-07-24 00:00
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CVE-2026-70630 (GCVE-0-2026-70630)
Vulnerability from nvd – Published: 2026-08-06 21:25 – Updated: 2026-08-14 16:51 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg 3.0 < 9.0 Uninitialized Heap Memory Read in Screenpresso Decoder
Summary
FFmpeg versions from 3.0 up to, but not including, 9.0 contain an uninitialized heap memory read vulnerability in the native Screenpresso decoder (libavcodec/screenpresso.c) that allows attackers to recover sensitive memory contents by supplying a crafted SPV1 packet with a valid zlib stream that decompresses fewer bytes than the full frame requires. The screenpresso_decode_frame() function fails to validate the produced byte count before calling av_image_copy_plane() to copy the complete frame dimensions from the persistent ctx->inflated_buf buffer, causing unwritten heap memory from prior allocations or prior frames to be copied into decoded output and potentially exposing sensitive data such as userspace addresses from persistent decoding services.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-07 17:09 UTC
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23896 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/9a32… | related |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/7058… | patch |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/c226… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-unini… | third-party-advisory |
Impacted products
Date Public
2026-07-24 00:00
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CVE-2026-70629 (GCVE-0-2026-70629)
Vulnerability from nvd – Published: 2026-08-06 21:25 – Updated: 2026-08-14 16:51 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg 3.0 < 9.0 Uninitialized Heap Memory Read in RSCC Decoder
Summary
FFmpeg versions from 3.0 up to, but not including, 9.0 contain an uninitialized heap memory read vulnerability in the native RSCC decoder (libavcodec/rscc.c) that allows attackers to disclose heap memory contents by supplying a crafted video file with a compressed tile that decompresses fewer bytes than the declared tile geometry requires. When rscc_decode_frame() calls av_image_copy_plane() without validating the decompressed byte count against the tile dimensions, the unwritten suffix of the persistent intermediate buffer ctx->inflated_buf is copied into the decoded frame, potentially exposing data from prior heap allocations or previous decoded frames in persistent decoding services.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-07 16:15 UTC
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23895 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/533a… | related |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/cd1f… | patch |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/a5fe… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-unini… | third-party-advisory |
Impacted products
Date Public
2026-07-24 00:00
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CVE-2026-70628 (GCVE-0-2026-70628)
Vulnerability from nvd – Published: 2026-08-06 21:24 – Updated: 2026-08-14 16:51 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg 0.5 < 9.0 DVB Subtitle Parser Heap Buffer Overflow via WTV File
Summary
FFmpeg versions from 0.5 up to, but not including, 9.0 contain a signed integer overflow vulnerability in the DVB subtitle parser in libavcodec/dvbsub_parser.c that allows attackers to trigger a heap buffer overflow by supplying a crafted WTV file. The overflow causes the bounds-check guard expression to wrap to INT_MIN, bypassing the PARSE_BUF_SIZE comparison and invoking memcpy() with attacker-controlled data into a heap buffer, resulting in an out-of-bounds heap write and potential memory corruption or code execution.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-07 14:57 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23897 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/c6ec… | related |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/93f2… | patch |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/02fc… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-dvb-s… | third-party-advisory |
Impacted products
Date Public
2026-07-24 00:00
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CVE-2026-66041 (GCVE-0-2026-66041)
Vulnerability from nvd – Published: 2026-07-24 19:54 – Updated: 2026-07-29 03:55 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg 7.0 - 8.1.2 Heap Out-of-Bounds Write via vf_quirc Filter
Summary
FFmpeg 7.0 through 8.1.2, fixed in commit 4da9812, contains a heap out-of-bounds write vulnerability in the vf_quirc filter that allows an attacker to corrupt heap memory by supplying a crafted PGS/SUP subtitle file with mismatched frame dimensions. Attackers can provide a subtitle file whose second presentation has larger dimensions than its first, causing av_image_copy_plane() to copy data exceeding the initial allocation size into the undersized libquirc grayscale image buffer, resulting in heap corruption and process crash with potential for code execution.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 00:00 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23625 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/4da9… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-heap-… | third-party-advisory |
Impacted products
Date Public
2026-07-04 00:00
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CVE-2026-66040 (GCVE-0-2026-66040)
Vulnerability from nvd – Published: 2026-07-24 19:46 – Updated: 2026-07-29 03:55 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg Heap Out-of-Bounds Write via PNG/APNG eXIf Encoder
Summary
FFmpeg through 8.1.2, fixed in commit b506faf, contains a heap out-of-bounds write vulnerability in the native PNG and APNG encoders that allows remote attackers to corrupt heap memory by supplying a crafted PNG image with a malicious eXIf chunk. Attackers can craft an eXIf chunk where multiple IFD entries reference the same large value payload, causing canonical serialization to expand the output far beyond the undersized allocation estimated by add_exif_profile_size(), resulting in png_write_chunk() writing tens of thousands of bytes past the buffer boundary, leading to deterministic heap corruption, process crash, and potentially arbitrary code execution.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 00:00 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23786 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/b506… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-heap-… | third-party-advisory |
Impacted products
Date Public
2026-07-21 00:00
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CVE-2026-66039 (GCVE-0-2026-66039)
Vulnerability from nvd – Published: 2026-07-24 19:42 – Updated: 2026-07-29 03:55 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg MACE6 Audio Decoder Heap Out-of-Bounds Write via CAF File
Summary
FFmpeg through 8.1.2, fixed in commit aafb5c6, contains a signed integer overflow vulnerability in the MACE6 audio decoder that allows attackers to corrupt heap memory by supplying a crafted CAF file with a malicious bytes_per_packet value. Attackers can craft a CAF file with oversized bytes_per_packet and frames_per_packet values in the desc chunk to trigger an integer overflow in mace_decode_frame() during output sample count computation, resulting in an undersized buffer allocation and heap out-of-bounds write that could enable code execution.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 00:00 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23631 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/aafb… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-mace6… | third-party-advisory |
Impacted products
Date Public
2026-07-02 00:00
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CVE-2026-66038 (GCVE-0-2026-66038)
Vulnerability from nvd – Published: 2026-07-24 19:39 – Updated: 2026-07-28 01:06 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg LCL/ZLIB Video Decoder Information Disclosure via lcldec.c
Summary
FFmpeg through 8.1.2, fixed in commit 8670835, contains an information disclosure vulnerability in the LCL/ZLIB video decoder that allows attackers to expose uninitialized heap memory by supplying a valid zlib stream that inflates to fewer bytes than the expected frame size. The zlib_decomp() function in lcldec.c treats short decompression as non-fatal and continues to the RGB24 conversion path, which copies a full frame's worth of rows from the allocation buffer using original frame dimensions, causing uninitialized heap contents including pointer-derived allocator bytes to be copied into the attacker-observable AVFrame output and potentially defeating ASLR in long-lived media processing services.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-24 20:14 UTC
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23626 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/e7cb… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-lcl-z… | third-party-advisory |
Impacted products
Date Public
2026-07-04 00:00
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CVE-2026-66037 (GCVE-0-2026-66037)
Vulnerability from nvd – Published: 2026-07-24 19:36 – Updated: 2026-07-28 01:06 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg IAMF Demuxer Uncontrolled Resource Consumption via mix_presentation_obu()
Summary
FFmpeg through 8.1.2, fixed in commit 5d7112c, contains an uncontrolled resource consumption vulnerability in the IAMF demuxer that allows an unauthenticated attacker to cause multi-gigabyte memory allocation from a 17-byte input file by supplying a crafted count_label field. The mix_presentation_obu() function in libavformat/iamf_parse.c calls av_calloc(count_label, sizeof(*language_label)) with an attacker-controlled value before validating available OBU data, enabling an allocation amplification of approximately 126 million bytes per input byte that exhausts process memory or triggers an OOM-kill during format probing.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-27 16:15 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23627 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/8670… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-iamf-… | third-party-advisory |
Impacted products
Date Public
2026-06-28 00:00
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CVE-2026-66036 (GCVE-0-2026-66036)
Vulnerability from nvd – Published: 2026-07-24 19:34 – Updated: 2026-07-29 03:55 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg Heap Out-of-Bounds Write in vf_hqdn3d Filter
Summary
FFmpeg through 8.1.2, fixed in commit 5d7112c, contains a heap out-of-bounds write vulnerability in the vf_hqdn3d filter that allows attackers to corrupt heap memory by supplying a crafted video whose frame resolution increases between frames when filtergraph reinitialization is disabled via the -reinit_filter 0 option. Attackers can provide a malicious video input where vf_hqdn3d.config_input() allocates undersized per-plane line-history buffers based on the initial frame width, and subsequent larger frames cause denoise_spatial() to write beyond the allocation boundary, resulting in heap memory corruption.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 00:00 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23783 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/5d71… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-heap-… | third-party-advisory |
Impacted products
Date Public
2026-07-21 00:00
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CVE-2026-65706 (GCVE-0-2026-65706)
Vulnerability from nvd – Published: 2026-07-23 19:05 – Updated: 2026-07-28 01:06 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg 3.0 - 8.1.2 vf_swaprect Out-of-Bounds Write via NV12 Frame Processing
Summary
FFmpeg versions 3.0 through 8.1.2 contain an out-of-bounds write vulnerability in the vf_swaprect video filter that allows attackers to corrupt heap memory by supplying a crafted NV12 video frame with odd width dimensions. The filter_frame() function reuses a temporary row buffer sized for plane 0's single-byte pixel step across all planes, causing an 18-byte memcpy into a 17-byte heap allocation when processing the two-byte-per-sample interleaved chroma plane of a 17x16 NV12 frame, resulting in heap corruption and process crash with potential for code execution.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 00:00 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23779 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/a7e3… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-vf-sw… | third-party-advisory |
Impacted products
Date Public
2026-07-11 00:00
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"id": "CVE-2026-65706",
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