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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9821 vulnerabilities reference this CWE, most recent first.
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 (v2.0.3)
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
Credits
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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 (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
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|---|---|
| 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 (v2.0.3)
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 (v2.0.3)
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 (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
2 references
Impacted products
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CVE-2026-7261 (GCVE-0-2026-7261)
Vulnerability from cvelistv5 – Published: 2026-05-10 04:07 – Updated: 2026-05-11 13:14
VLAI
EPSS
VEX
Title
SoapServer session-persisted object use-after-free via SOAP header fault
Summary
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Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use after free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/php/php-src/security/advisorie… | vendor-advisory |
Impacted products
Date Public
2026-05-07 00:00
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CVE-2026-7111 (GCVE-0-2026-7111)
Vulnerability from cvelistv5 – Published: 2026-04-29 14:22 – Updated: 2026-06-25 19:35
VLAI
EPSS
VEX
Title
Text::CSV_XS versions before 1.62 for Perl have a use-after-free when registered callbacks extend the Perl argument stack, which may enable type confusion or memory corruption
Summary
Text::CSV_XS versions before 1.62 for Perl have a use-after-free when registered callbacks extend the Perl argument stack, which may enable type confusion or memory corruption.
The Parse, print, getline, and getline_all methods invoke registered callbacks (for example after_parse, before_print, or on_error) and cache the Perl argument stack pointer across the call. If a callback extends the argument stack enough to trigger a reallocation, the return value is written through the stale pointer into the freed buffer, and the caller reads the original $self argument as the return value instead.
Calling code that expects parsed data from getline_all receives the Text::CSV_XS object in its place, leading to logic errors or crashes. Text::CSV_XS objects used without any registered callbacks are not affected.
Severity
8.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| HMBRAND | Text::CSV_XS |
Affected:
0 , < 1.62
(custom)
|
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CVE-2026-6722 (GCVE-0-2026-6722)
Vulnerability from cvelistv5 – Published: 2026-05-10 04:19 – Updated: 2026-07-15 00:41
VLAI
EPSS
VEX
Title
Use-After-Free in SOAP using Apache map
Summary
In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the SOAP extension's object deduplication mechanism stores pointers to PHP objects in a global map without incrementing their reference counts. When an apache:Map node contains duplicate keys, processing the second entry overwrites the first in the temporary result map, freeing the original PHP object while its stale pointer remains in the map. A subsequent href reference to the freed node can copy the dangling pointer into the result. As PHP string allocations can reclaim the freed memory region, an attacker with control over the SOAP request body can exploit this use-after-free to achieve remote code execution.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/php/php-src/security/advisorie… | vendor-advisory |
| https://access.redhat.com/security/cve/CVE-2026-6722 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2468560 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:34354 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:33449 | vendor-advisoryx_refsource_REDHAT |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| PHP Group | PHP |
Affected:
8.2.* , < 8.2.31
(semver)
Affected: 8.3.* , < 8.3.31 (semver) Affected: 8.4.* , < 8.4.21 (semver) Affected: 8.5.* , < 8.5.6 (semver) |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
8100020260604072603.f7998665 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:8.0.30-6.el9_8 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
Date Public
2026-05-07 00:00
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CVE-2026-6653 (GCVE-0-2026-6653)
Vulnerability from cvelistv5 – Published: 2026-06-22 12:40 – Updated: 2026-06-22 15:51
VLAI
EPSS
VEX
Title
libxml2: Use after free in xmlParseInternalSubset via improper entity resolution handling
Summary
Use After Free in libxml2's xmlParseInternalSubset from GNOME libxml2 version 2.9.11 to 2.11.0 allows a remote attacker to cause a denial-of-service via maliciously crafted XML input with improper entity resolution handling.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://bugs.launchpad.net/ubuntu/+source/libxml2… | issue-tracking |
| https://gitlab.gnome.org/GNOME/libxml2/-/work_ite… | issue-tracking |
Impacted products
Credits
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CVE-2026-6424 (GCVE-0-2026-6424)
Vulnerability from cvelistv5 – Published: 2026-07-16 08:28 – Updated: 2026-07-16 12:17
VLAI
EPSS
VEX
Title
Use-after-free vulnerability in ESET security products for Linux
Summary
Use-after-free vulnerability in ESET Linux products potentially allowed an attacker to trigger kernel panic on the system
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use after free
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| ESET, spol. s.r.o. | ESET Endpoint Antivirus for Linux |
Affected:
13.1 , ≤ 13.1.3.0
(custom)
Affected: 13.0 , ≤ 13.0.3.0 (custom) Affected: 12.2 , ≤ 12.2.8.0 (custom) Affected: 12.1 , ≤ 12.1.1.0 (custom) Affected: 12.0 , ≤ 12.0.13.0 (custom) Unaffected: 13.2.3.0 |
|
| ESET, spol. s.r.o. | ESET Server Security for Linux |
Affected:
13.1 , ≤ 13.1.116.0
(custom)
Affected: 13.0 , ≤ 13.0.34.0 (custom) Affected: 12.2 , ≤ 12.2.72.0 (custom) Affected: 12.1 , ≤ 12.1.406.0 (custom) Affected: 12.0 , ≤ 12.0.287.0 (custom) Unaffected: 13.2.53.0 |
Date Public
2026-07-16 08:00
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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.