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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
10829 vulnerabilities reference this CWE, most recent first.
CVE-2026-9158 (GCVE-0-2026-9158)
Vulnerability from cvelistv5 – Published: 2026-06-18 14:10 – Updated: 2026-06-18 14:40
VLAI
EPSS
VEX
Summary
In Eclipse 4diac FORTE versions 3.0.0 to 3.1.0, a specially crafted DELETE connection command to the management interface can lead to a dangling pointer. This allows subsequent commands to access freed memory (use-after-free).
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-18 14:33 UTC
CWE
- CWE-416 - Use after free
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse 4diac |
Affected:
3.0.0 , ≤ 3.1.0
(semver)
|
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CVE-2026-9034 (GCVE-0-2026-9034)
Vulnerability from cvelistv5 – Published: 2026-09-08 14:20 – Updated: 2026-09-10 18:03
VLAI
EPSS
VEX
Title
Mali GPU Userspace Driver allows access to already freed memory
Summary
Use After Free vulnerability in Arm Ltd Bifrost GPU Userspace Driver, Arm Ltd Valhall GPU Userspace Driver, Arm Ltd Arm 5th Gen GPU Architecture Userspace Driver allows a non-privileged user process to perform valid GPU processing operations, including via WebGL or WebGPU, to access already freed memory.
This issue affects Bifrost GPU Userspace Driver: from r42p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p3; Valhall GPU Userspace Driver: from r42p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Userspace Driver: from r42p0 through r49p5, from r50p0 through r54p3, r55p0.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 18:02 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Arm Ltd | Bifrost GPU Userspace Driver |
Affected:
r42p0 , ≤ r49p5
(patch)
Affected: r50p0 , ≤ r51p0 (patch) Affected: r54p1 , ≤ r54p3 (patch) |
|
| Arm Ltd | Valhall GPU Userspace Driver |
Affected:
r42p0 , ≤ r49p5
(patch)
Affected: r50p0 , ≤ r54p3 (patch) Affected: r55p0 (patch) Unaffected: r56p0 (patch) |
|
| Arm Ltd | Arm 5th Gen GPU Architecture Userspace Driver |
Affected:
r42p0 , ≤ r49p5
(patch)
Affected: r50p0 , ≤ r54p3 (patch) Affected: r55p0 (patch) Unaffected: r56p0 (patch) |
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CVE-2026-8829 (GCVE-0-2026-8829)
Vulnerability from cvelistv5 – Published: 2026-06-04 02:03 – Updated: 2026-06-28 11:34
VLAI
EPSS
VEX
Title
HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities
Summary
HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities.
The XS routine backing HTML::Entities::_decode_entities cached a pointer (repl) into the entity-value SV returned by hv_fetch on the entity2char hash. When the input SV was identical to a value SV in that hash, and that value contained its own key as an entity reference, a later call to grow_gap() reallocated the SV's PV buffer and freed the backing allocation that repl still pointed into. The subsequent copy loop read repl_len bytes from the freed allocation.
The read may disclose adjacent heap contents into the destination SV.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-04 12:59 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| OALDERS | HTML::Entities |
Affected:
0 , < 3.84
(custom)
|
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CVE-2026-8746 (GCVE-0-2026-8746)
Vulnerability from cvelistv5 – Published: 2026-05-17 10:15 – Updated: 2026-05-18 20:07
VLAI
EPSS
VEX
Title
Open5GS NRF nghttp2-server.c discover_handler use after free
Summary
A security flaw has been discovered in Open5GS up to 2.7.7. Affected by this issue is the function discover_handler in the library /lib/sbi/nghttp2-server.c of the component NRF. The manipulation results in use after free. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-18 20:06 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/364333 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/364333/cti | signaturepermissions-required |
| https://vuldb.com/submit/817032 | third-party-advisory |
| https://github.com/open5gs/open5gs/issues/4476 | exploitissue-tracking |
| https://github.com/open5gs/open5gs/ | product |
Impacted products
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CVE-2026-8696 (GCVE-0-2026-8696)
Vulnerability from cvelistv5 – Published: 2026-05-15 20:52 – Updated: 2026-07-14 22:04
VLAI
EPSS
VEX
Title
radare2 6.1.5 Use-After-Free via gdbr_pids_list()
Summary
radare2 6.1.5 contains a use-after-free vulnerability in the gdbr_pids_list() function within the GDB client core that allows remote attackers to cause a denial of service or potentially execute arbitrary code by sending malformed thread information responses. Attackers can trigger the vulnerability by causing qsThreadInfo to fail after qfThreadInfo successfully allocates RDebugPid structures, resulting in double-free memory corruption when the error path attempts to clean up the list.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-19 12:30 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/radareorg/radare2/issues/25836 | issue-tracking |
| https://github.com/radareorg/radare2/commit/c213a… | patch |
| https://www.vulncheck.com/advisories/radare2-use-… | third-party-advisory |
Impacted products
Date Public
2026-05-15 21:00
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CVE-2026-8695 (GCVE-0-2026-8695)
Vulnerability from cvelistv5 – Published: 2026-05-15 17:01 – Updated: 2026-07-14 22:04
VLAI
EPSS
VEX
Title
radare2 6.1.5 Use-After-Free via gdbr_threads_list()
Summary
radare2 6.1.5 contains a use-after-free vulnerability in the gdbr_threads_list() function that allows remote attackers to trigger memory corruption by sending a valid qfThreadInfo response followed by a malformed qsThreadInfo response. Attackers can exploit this vulnerability through GDB remote debugging to cause a denial of service or potentially achieve code execution by manipulating thread list processing.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-15 17:33 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/radareorg/radare2/issues/25835 | issue-tracking |
| https://github.com/radareorg/radare2/commit/c213a… | patch |
| https://www.vulncheck.com/advisories/radare2-use-… | third-party-advisory |
| https://github.com/radareorg/radare2/issues/25836 | issue-tracking |
Impacted products
Date Public
2026-05-15 17:00
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CVE-2026-8336 (GCVE-0-2026-8336)
Vulnerability from cvelistv5 – Published: 2026-05-13 00:16 – Updated: 2026-05-15 16:16
VLAI
EPSS
VEX
Title
Post-authentication use-after-free error in $_internalJsEmit and mapreduce commands
Summary
After invoking $_internalJsEmit, which is not intended to be directly accessible, or mapreduce command’s map function in a certain way, an authenticated user can subsequently crash mongod when the server-side JavaScript engine (through $where, $function, mapreduce reduce stage, etc.) is used also in a specific way, resulting in a post-authentication denial-of-service.
This issue impacts MongoDB Server v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 14:35 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://jira.mongodb.org/browse/SERVER-121610 | issue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB, Inc. | MongoDB Server |
Affected:
8.2 , < 8.2.9
(custom)
Affected: 8.3 , < 8.3.2 (custom) |
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CVE-2026-8201 (GCVE-0-2026-8201)
Vulnerability from cvelistv5 – Published: 2026-05-13 00:12 – Updated: 2026-05-13 14:34
VLAI
EPSS
VEX
Title
Use-After-Free in MongoDB FLE Query Analysis When Processing Positional Projections on Encrypted Fields
Summary
A use-after-free vulnerability exists in MongoDB's Field-Level Encryption (FLE) query analysis component, affecting client-side uses of mongocryptd and crypt_shared. Triggering this vulnerability requires control over the structure of a client's FLE-related query.
This issue impacts MongoDB Server’s mongocryptd component v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 14:34 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://jira.mongodb.org/browse/SERVER-122032 | issue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB, Inc. | MongoDB Server |
Affected:
7.0 , < 7.0.34
(custom)
Affected: 8.0 , < 8.0.23 (custom) Affected: 8.2 , < 8.2.9 (custom) Affected: 8.3 , < 8.3.2 (custom) |
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CVE-2026-7531 (GCVE-0-2026-7531)
Vulnerability from cvelistv5 – Published: 2026-06-25 20:01 – Updated: 2026-06-26 13:17
VLAI
EPSS
VEX
Title
Use-after-free in PQC hybrid key-share handling
Summary
Use-after-free in PQC hybrid key-share handling. This is an incomplete-fix follow-up to CVE-2026-5460 (released in 5.9.1): a malicious TLS 1.3 server sending a truncated PQC hybrid KeyShare can still trigger the error cleanup path to operate on freed memory.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-26 13:17 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
2 references
Impacted products
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CVE-2026-7477 (GCVE-0-2026-7477)
Vulnerability from cvelistv5 – Published: 2026-09-08 14:20 – Updated: 2026-09-10 18:05
VLAI
EPSS
VEX
Title
Mali GPU Kernel Driver allows access to already freed memory
Summary
Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU memory processing operations to access already freed memory.
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Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 18:04 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Arm Ltd | Bifrost GPU Kernel Driver |
Affected:
r44p0 , ≤ r49p4
(patch)
Affected: r50p0 , ≤ r51p0 (patch) Affected: r54p1 , ≤ r54p2 (patch) |
|
| Arm Ltd | Valhall GPU Kernel Driver |
Affected:
r44p0 , ≤ r49p5
(patch)
Affected: r50p0 , ≤ r54p3 (patch) |
|
| Arm Ltd | Arm 5th Gen GPU Architecture Kernel Driver |
Affected:
r44p0 , ≤ r49p5
(patch)
Affected: r50p0 , ≤ r54p3 (patch) Affected: r55p0 (patch) Unaffected: r56p0 (patch) |
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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.