Common Weakness Enumeration
CWE-416
AllowedUse After Free
Abstraction: Variant · Status: Stable
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
12362 vulnerabilities reference this CWE, most recent first.
CVE-2026-121508 (GCVE-0-2026-121508)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:17 – Updated: 2026-11-03 15:29
VLAI
EPSS
VEX
Title
Use After Free in µD3TN
Summary
Use-After-Free in µD3TN BPv6 Fragmenter Cleanup allows Unauthenticated Remote Attacker to Cause DoS on Allocation Failure
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 15:15 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
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CVE-2026-121417 (GCVE-0-2026-121417)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:28 – Updated: 2026-11-03 17:06
VLAI
EPSS
VEX
Title
SurrealDB before 3.3.0 Use-After-Free via affinitypool spawn_local in KV Backends
Summary
SurrealDB before 3.3.0 contains a use-after-free vulnerability in surrealdb-core KV backends that pass borrowed transaction state into affinitypool::spawn_local closures relying on future Drop for safety. Rust embedders that leak a dispatched future (e.g. via mem::forget) and drop the transaction cause pool workers to read and write freed memory, risking crashes or memory corruption.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 17:06 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/surrealdb/surrealdb/security/a… | vendor-advisory |
| https://github.com/surrealdb/surrealdb/commit/175… | patch |
| https://www.vulncheck.com/advisories/surrealdb-be… | third-party-advisory |
Impacted products
Date Public
2026-10-19 00:00
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CVE-2026-121398 (GCVE-0-2026-121398)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:28 – Updated: 2026-11-03 14:28
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Use-After-Free via dyn-channel-dump Module
Summary
FreeRDP before 3.32.2 contains a cross-thread use-after-free vulnerability in the freerdp-proxy dyn-channel-dump module during session teardown. A malicious RDP target can send dynamic channel data while the front client disconnects, letting the client thread read freed ChannelData and crash the proxy process.
Severity
CWE
- CWE-416 - Use After Free
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-19 00:00
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CVE-2026-120337 (GCVE-0-2026-120337)
Vulnerability from cvelistv5 – Published: 2026-11-02 03:30 – Updated: 2026-11-02 03:30
VLAI
EPSS
VEX
Title
VStarcam O-KAM SuperIPCam P2P Session Teardown SuperIPCam.exe FUN_005a2d44 use after free
Summary
A vulnerability was determined in VStarcam O-KAM SuperIPCam 1.3.3.32. Affected by this issue is the function FUN_005a2d44 of the file SuperIPCam.exe of the component P2P Session Teardown. This manipulation causes use after free. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/429662 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/429662/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-120337 | third-party-advisory |
| https://vuldb.com/submit/1016302 | third-party-advisory |
| https://gist.github.com/Ishanoshada/cb73d61f792c7… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| VStarcam | O-KAM SuperIPCam |
Affected:
1.3.3.32
cpe:2.3:a:vstarcam:o-kam_superipcam:*:*:*:*:*:*:*:* |
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CVE-2026-119378 (GCVE-0-2026-119378)
Vulnerability from cvelistv5 – Published: 2026-10-30 11:30 – Updated: 2026-10-30 15:56
VLAI
EPSS
VEX
Title
SQLite before 3.54.0 Use-After-Free in R-Tree nodeWrite()
Summary
SQLite before 3.54.0 contains a use-after-free vulnerability in the R-Tree extension that allows attackers to make applications use freed heap memory by manipulating the %_node shadow table. Attackers can supply a database declaring %_node WITHOUT ROWID or with a RAISE(IGNORE) trigger so nodeWrite() hashes nodes as 0, crashing the process after node splits.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 15:20 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://sqlite.org/src/info/6a9e1415659f9e75 | patch |
| https://github.com/sqlite/sqlite/commit/d21bd37c7… | patch |
| https://github.com/sqlite/sqlite/blob/version-3.5… | technical-description |
| https://sqlite.org/releaselog/3_54_0.html | release-notes |
| https://abraxaslabs.tech/research/sqlite-rtree-rowid0 | third-party-advisory |
| https://github.com/sqlite/sqlite | product |
| https://www.vulncheck.com/advisories/sqlite-befor… | third-party-advisory |
Impacted products
Date Public
2026-09-24 00:00
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CVE-2026-119372 (GCVE-0-2026-119372)
Vulnerability from cvelistv5 – Published: 2026-10-30 11:30 – Updated: 2026-10-30 11:30
VLAI
EPSS
VEX
Title
SQLite before 3.54.0 Use-After-Free in FTS3 fts3BestSnippet() via snippet()
Summary
SQLite before 3.54.0 built with FTS3/FTS4 and SQLITE_ENABLE_FTS3_PARENTHESIS contains a use-after-free vulnerability in fts3BestSnippet() caused by dangling cached position-list pointers. Attackers can run a full-text MATCH query combining OR and NEAR operators with snippet() to read freed heap memory and crash the process.
Severity
5.5 (Medium)
CWE
- CWE-416 - Use After Free
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://sqlite.org/bugs/info/2026-08-17T09:18:24Z | issue-tracking |
| https://sqlite.org/src/info/e4635c4153 | patch |
| https://github.com/sqlite/sqlite/commit/a87bd2471… | patch |
| https://github.com/sqlite/sqlite/blob/version-3.5… | technical-description |
| https://sqlite.org/releaselog/3_54_0.html | release-notes |
| https://abraxaslabs.tech/research/sqlite-fts3-snippet | third-party-advisory |
| https://github.com/sqlite/sqlite | product |
| https://www.vulncheck.com/advisories/sqlite-befor… | third-party-advisory |
Impacted products
Date Public
2026-08-17 00:00
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CVE-2026-119338 (GCVE-0-2026-119338)
Vulnerability from cvelistv5 – Published: 2026-10-30 20:12 – Updated: 2026-10-30 20:12
VLAI
EPSS
VEX
Title
Tesseract: Double free and use after free in the PAGE XML renderer on right-to-left pages
Summary
Tesseract is an open source OCR engine. From 5.4.0 until 5.5.4, AppendLinePolygon in src/api/pagerenderer.cpp destroys the caller-owned right-to-left Pta accumulator while receiving it by value, leaving line_top_rtl_pts and line_bottom_rtl_pts dangling. On an upright Hebrew or Arabic page at the default PAGE XML level, POLYGONFLAG with a false skewed_flag enters the vulnerable calls, while LEVELFLAG greater than zero provides an alternative gate. The calls repeatedly read and free the stale object, causing a double free and use after free and allowing corrupted coordinates to reach RecalcPolygonline. This issue is fixed in version 5.5.4.
Severity
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/tesseract-ocr/tesseract/securi… | x_refsource_CONFIRM |
| https://github.com/tesseract-ocr/tesseract/pull/4647 | x_refsource_MISC |
| https://github.com/tesseract-ocr/tesseract/commit… | x_refsource_MISC |
| https://github.com/tesseract-ocr/tesseract/releas… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| tesseract-ocr | tesseract |
Affected:
>= 5.4.0, < 5.5.4
|
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CVE-2026-119332 (GCVE-0-2026-119332)
Vulnerability from cvelistv5 – Published: 2026-10-30 19:57 – Updated: 2026-10-30 19:57
VLAI
EPSS
VEX
Title
Ladybird: FinalizationRegistry::cleanup() heap use-after-free via reentrant unregister()
Summary
Ladybird is a truly independent web browser. Prior to 209579c96473c75bd5eba9701fcadb841a045964, FinalizationRegistry::cleanup() in Libraries/LibJS/Runtime/FinalizationRegistry.cpp removed a dead record from m_records, retained an iterator to the next FinalizationRecord, and then invoked attacker-controlled JavaScript through the cleanup callback. If that callback called unregister() for the next record, remove_by_token() freed the node referenced by the retained iterator, and the next cleanup iteration read its target and held_value fields after free. This reliably crashes instrumented WebContent builds and creates a memory-corruption primitive in production builds. This vulnerability is fixed by commit 209579c96473c75bd5eba9701fcadb841a045964.
Severity
8.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/LadybirdBrowser/ladybird/secur… | x_refsource_CONFIRM |
| https://github.com/LadybirdBrowser/ladybird/commi… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| LadybirdBrowser | ladybird |
Affected:
< 209579c96473c75bd5eba9701fcadb841a045964
|
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CVE-2026-119116 (GCVE-0-2026-119116)
Vulnerability from cvelistv5 – Published: 2026-10-30 16:10 – Updated: 2026-10-30 20:00
VLAI
EPSS
VEX
Title
Use-after-free in the SetClient command handler of kmstool-enclave in AWS aws-nitro-enclaves-sdk-c
Summary
A use-after-free and double-free issue in the SetClient command handler of the kmstool-enclave sample application of AWS aws-nitro-enclaves-sdk-c before 0.4.6 may allow an application that runs on the parent EC2 instance to corrupt heap memory inside a Nitro Enclave which may lead to arbitrary code execution within the enclave.
To remediate this issue, users should rebuild any enclave image that includes kmstool-enclave, or code derived from it, against aws-nitro-enclaves-sdk-c 0.4.6.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 19:21 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/aws/aws-nitro-enclaves-sdk-c/r… | release-notespatch |
| https://aws.amazon.com/security/security-bulletin… | vendor-advisory |
| https://github.com/aws/aws-nitro-enclaves-sdk-c/s… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| AWS | kmstool-enclave |
Affected:
0 , < 0.4.6
(custom)
cpe:2.3:a:aws:kmstool-enclave:*:*:*:*:*:*:*:* |
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CVE-2026-118446 (GCVE-0-2026-118446)
Vulnerability from cvelistv5 – Published: 2026-11-03 09:00 – Updated: 2026-11-03 18:32 Unsupported When Assigned
VLAI
EPSS
VEX
Title
Use-after-free in INSTRUX array members in pybddisasm
Summary
A use-after-free vulnerability in the pybddisasm Python bindings affects array-valued members of INSTRUX objects, including ND_OPERAND arrays. These arrays are exposed as Python lists whose elements reference memory owned by the parent INSTRUX object. Retaining a list or an element does not keep the parent allocation alive. Accessing an element after the parent INSTRUX object has been freed therefore accesses freed memory. Depending on how the element is used and whether the freed allocation has been reused, this may expose process memory or cause the Python process to crash. Exploitation requires an application to retain and subsequently access an array element after the parent object has been freed. The pybddisasm package is no longer maintained.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 17:23 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://pypi.org/project/pybddisasm/ |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Bitdefender | pybddisasm |
Affected:
0 , ≤ 0.3.0
(python)
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Mitigation
Architecture and Design
Strategy: Language Selection
Choose a language that provides automatic memory management.
Mitigation
Implementation
Strategy: Attack Surface Reduction
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
No CAPEC attack patterns related to this CWE.