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1044 vulnerabilities by FFMPEG
CVE-2026-52297 (GCVE-0-2026-52297)
Vulnerability from nvd – Published: 2026-09-13 00:00 – Updated: 2026-09-14 16:03
VLAI
EPSS
VEX
Summary
FFmpeg before 9.0 has an out-of-bounds read because there is insufficiently padded extradata in the MOV parsing path in mov_read_iacb in libavformat/mov.c.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 16:03 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
Impacted products
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CVE-2026-52296 (GCVE-0-2026-52296)
Vulnerability from nvd – Published: 2026-09-13 00:00 – Updated: 2026-09-15 17:15
VLAI
EPSS
VEX
Summary
FFmpeg before 9.0 has an out-of-bounds read because of missing required padding in WMA extradata allocation paths in libavcodec/wmaenc.c.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 17:14 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
Impacted products
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CVE-2026-52295 (GCVE-0-2026-52295)
Vulnerability from nvd – Published: 2026-09-01 00:00 – Updated: 2026-09-13 21:58
VLAI
EPSS
VEX
Summary
FFmpeg before 9.0 has an out-of-bounds read because the copied extradata lacked required padding before GetBitContext-based access in libavformat/iamf_writer.c.
Severity
6.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-07 10:58 UTC
CWE
Assigner
References
Impacted products
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CVE-2026-75147 (GCVE-0-2026-75147)
Vulnerability from nvd – Published: 2026-08-19 16:29 – Updated: 2026-08-25 02:19 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
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 02:19 UTC
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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CVE-2026-75146 (GCVE-0-2026-75146)
Vulnerability from nvd – Published: 2026-08-19 16:28 – Updated: 2026-08-20 14:56 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
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 14:55 UTC
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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CVE-2026-75145 (GCVE-0-2026-75145)
Vulnerability from nvd – Published: 2026-08-19 16:27 – Updated: 2026-08-21 19:52 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)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 19:52 UTC
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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CVE-2026-75144 (GCVE-0-2026-75144)
Vulnerability from nvd – Published: 2026-08-19 16:26 – Updated: 2026-08-21 03:55 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
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 00:00 UTC
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 nvd – Published: 2026-08-19 16:26 – Updated: 2026-08-21 03:55 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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 00:00 UTC
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 nvd – Published: 2026-08-19 16:24 – Updated: 2026-08-27 16:25 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
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 03:55 UTC
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 nvd – Published: 2026-08-19 16:24 – Updated: 2026-08-21 03:55 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
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 00:00 UTC
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 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
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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-2026-52297 (GCVE-0-2026-52297)
Vulnerability from cvelistv5 – Published: 2026-09-13 00:00 – Updated: 2026-09-14 16:03
VLAI
EPSS
VEX
Summary
FFmpeg before 9.0 has an out-of-bounds read because there is insufficiently padded extradata in the MOV parsing path in mov_read_iacb in libavformat/mov.c.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 16:03 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
Impacted products
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CVE-2026-52296 (GCVE-0-2026-52296)
Vulnerability from cvelistv5 – Published: 2026-09-13 00:00 – Updated: 2026-09-15 17:15
VLAI
EPSS
VEX
Summary
FFmpeg before 9.0 has an out-of-bounds read because of missing required padding in WMA extradata allocation paths in libavcodec/wmaenc.c.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 17:14 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
Impacted products
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CVE-2026-52295 (GCVE-0-2026-52295)
Vulnerability from cvelistv5 – Published: 2026-09-01 00:00 – Updated: 2026-09-13 21:58
VLAI
EPSS
VEX
Summary
FFmpeg before 9.0 has an out-of-bounds read because the copied extradata lacked required padding before GetBitContext-based access in libavformat/iamf_writer.c.
Severity
6.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-07 10:58 UTC
CWE
Assigner
References
Impacted products
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CVE-2026-75147 (GCVE-0-2026-75147)
Vulnerability from cvelistv5 – Published: 2026-08-19 16:29 – Updated: 2026-08-25 02:19 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
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 02:19 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
3 references
| URL | Tags |
|---|---|
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| https://www.vulncheck.com/advisories/ffmpeg-out-o… | third-party-advisory |
Impacted products
Date Public
2026-08-04 00:00
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CVE-2026-75146 (GCVE-0-2026-75146)
Vulnerability from cvelistv5 – Published: 2026-08-19 16:28 – Updated: 2026-08-20 14:56 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
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 14:55 UTC
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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CVE-2026-75145 (GCVE-0-2026-75145)
Vulnerability from cvelistv5 – Published: 2026-08-19 16:27 – Updated: 2026-08-21 19:52 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)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 19:52 UTC
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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CVE-2026-75144 (GCVE-0-2026-75144)
Vulnerability from cvelistv5 – Published: 2026-08-19 16:26 – Updated: 2026-08-21 03:55 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
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 00:00 UTC
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: 2026-08-21 03:55 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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 00:00 UTC
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: 2026-08-27 16:25 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
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 03:55 UTC
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: 2026-08-21 03:55 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
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 00:00 UTC
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
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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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