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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
11157 vulnerabilities reference this CWE, most recent first.
CVE-2025-66495 (GCVE-0-2025-66495)
Vulnerability from cvelistv5 – Published: 2025-12-19 07:09 – Updated: 2025-12-19 14:45
VLAI
EPSS
VEX
Title
Foxit PDF Reader Annotation Use-After-Free Remote Code Execution Vulnerability
Summary
A use-after-free vulnerability exists in the annotation handling of Foxit PDF Reader before 2025.2.1, 14.0.1, and 13.2.1 on Windows and MacOS. When opening a PDF containing specially crafted JavaScript, a pointer to memory that has already been freed may be accessed or dereferenced, potentially allowing a remote attacker to execute arbitrary code.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-19 14:45 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Foxit Software Inc. | Foxit PDF Reader |
Affected:
Versions 2025.2.1 and earlier
Affected: Versions 14.0.1 and earlier Affected: Versions 13.2.1 and eariler |
|
| Foxit Software Inc. | Foxit PDF Editor |
Affected:
Versions 2025.2.1 and earlier
Affected: Versions 14.0.1 and earlier Affected: Versions 13.2.1 and eariler |
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CVE-2025-66494 (GCVE-0-2025-66494)
Vulnerability from cvelistv5 – Published: 2025-12-19 07:08 – Updated: 2025-12-19 14:49
VLAI
EPSS
VEX
Title
Foxit PDF Reader PDF File Parsing Use-After-Free Remote Code Execution Vulnerability
Summary
A use-after-free vulnerability exists in the PDF file parsing of Foxit PDF Reader before 2025.2.1, 14.0.1, and 13.2.1 on Windows. A PDF object managed by multiple parent objects could be freed while still being referenced, potentially allowing a remote attacker to execute arbitrary code.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-19 14:49 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Foxit Software Inc. | Foxit PDF Reader |
Affected:
Versions 2025.2.1 and earlier
Affected: Versions 14.0.1 and earlier Affected: Versions 13.2.1 and eariler |
|
| Foxit Software Inc. | Foxit PDF Editor |
Affected:
Versions 2025.2.1 and earlier
Affected: Versions 14.0.1 and earlier Affected: Versions 13.2.1 and eariler |
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CVE-2025-66493 (GCVE-0-2025-66493)
Vulnerability from cvelistv5 – Published: 2025-12-19 07:07 – Updated: 2025-12-19 14:51
VLAI
EPSS
VEX
Title
Foxit PDF Reader AcroForm Use-After-Free Remote Code Execution Vulnerability
Summary
A use-after-free vulnerability exists in the AcroForm handling of Foxit PDF Reader and Foxit PDF Editor before 2025.2.1,14.0.1 and 13.2.1
on Windows
. When opening a PDF containing specially crafted JavaScript, a pointer to memory that has already been freed may be accessed or dereferenced, potentially allowing a remote attacker to execute arbitrary code.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-19 14:50 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Foxit Software Inc. | Foxit PDF Editor |
Affected:
Versions 2025.2.1 and earlier
Affected: Versions 14.0.1 and earlier Affected: Versions 13.2.1 and earlier |
|
| Foxit Software Inc. | Foxit PDF Reader |
Affected:
Versions 2025.2.1 and earlier
Affected: Versions 14.0.1 and earlier Affected: Versions 13.2.1 and earlier |
Date Public
2025-12-18 16:00
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CVE-2025-66326 (GCVE-0-2025-66326)
Vulnerability from cvelistv5 – Published: 2025-12-08 08:08 – Updated: 2025-12-08 18:15
VLAI
EPSS
VEX
Summary
Race condition vulnerability in the audio module. Impact: Successful exploitation of this vulnerability may affect availability.
Severity
6.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-08 18:11 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
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CVE-2025-66023 (GCVE-0-2025-66023)
Vulnerability from cvelistv5 – Published: 2026-01-01 15:11 – Updated: 2026-01-05 20:04
VLAI
EPSS
VEX
Title
NanoMQ has Use-After-Free of malformed bridging message
Summary
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. Versions prior to 0.24.5 have a Heap-Use-After-Free (UAF) vulnerability within the MQTT bridge client component (implemented via the underlying NanoNNG library). The vulnerability is triggered when NanoMQ acts as a bridge connecting to a remote MQTT broker. A malicious remote broker can trigger a crash (Denial of Service) or potential memory corruption by accepting the connection and immediately sending a malformed packet sequence. Version 0.34.5 contains a patch. The patch enforces stricter protocol adherence in the MQTT client SDK embedded in NanoMQ. Specifically, it ensures that CONNACK is always the first packet processed in the line. This prevents the state confusion that led to the Heap-Use-After-Free (UAF) when a malicious server sent a malformed packet sequence immediately after connection establishment. As a workaround, validate the remote broker before bridging.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-05 20:04 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/nanomq/nanomq/security/advisor… | x_refsource_CONFIRM |
| https://github.com/nanomq/nanomq/issues/2145 | x_refsource_MISC |
| https://github.com/nanomq/NanoNNG/pull/1365 | x_refsource_MISC |
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CVE-2025-65955 (GCVE-0-2025-65955)
Vulnerability from cvelistv5 – Published: 2025-12-02 23:02 – Updated: 2026-06-23 16:10
VLAI
EPSS
VEX
Title
ImageMagick has a use-after-free/double-free risk in Options::fontFamily when clearing family
Summary
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 7.1.2-9 and 6.9.13-34, there is a vulnerability in ImageMagick’s Magick++ layer that manifests when Options::fontFamily is invoked with an empty string. Clearing a font family calls RelinquishMagickMemory on _drawInfo->font, freeing the font string but leaving _drawInfo->font pointing to freed memory while _drawInfo->family is set to that (now-invalid) pointer. Any later cleanup or reuse of _drawInfo->font re-frees or dereferences dangling memory. DestroyDrawInfo and other setters (Options::font, Image::font) assume _drawInfo->font remains valid, so destruction or subsequent updates trigger crashes or heap corruption. This vulnerability is fixed in 7.1.2-9 and 6.9.13-34.
Severity
4.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-03 14:55 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/ImageMagick/ImageMagick/securi… | x_refsource_CONFIRM |
| https://github.com/ImageMagick/ImageMagick/commit… | x_refsource_MISC |
| https://github.com/ImageMagick/ImageMagick/commit… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ImageMagick | ImageMagick |
Affected:
>= 7.0.1-0, < 7.1.2-9
Affected: < 6.9.13-34 |
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CVE-2025-65953 (GCVE-0-2025-65953)
Vulnerability from cvelistv5 – Published: 2025-11-25 23:13 – Updated: 2025-11-26 16:10
VLAI
EPSS
VEX
Title
NanoMQ UAF of retain message due to invalid MQTTV5 properties
Summary
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. Prior to version 0.22.5, a Heap-Use-After-Free (UAF) vulnerability exists in the TCP transport component of NanoMQ, which relies on the underlying NanoNNG library (specifically in src/sp/transport/mqtt/broker_tcp.c). The vulnerability is due to improper resource management and premature cleanup of message and pipe structures under specific malformed MQTTV5 retain message traffic conditions. This issue has been patched in version 0.22.5.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-11-26 16:10 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/nanomq/nanomq/security/advisor… | x_refsource_CONFIRM |
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CVE-2025-64531 (GCVE-0-2025-64531)
Vulnerability from cvelistv5 – Published: 2025-11-11 20:43 – Updated: 2026-02-26 16:57
VLAI
EPSS
VEX
Title
Substance3D - Stager | Use After Free (CWE-416)
Summary
Substance3D - Stager versions 3.1.5 and earlier are affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-11-12 04:57 UTC
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/substan… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Substance3D - Stager |
Affected:
0 , ≤ 3.1.5
(semver)
|
Date Public
2025-11-11 17:00
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CVE-2025-64468 (GCVE-0-2025-64468)
Vulnerability from cvelistv5 – Published: 2025-12-18 14:50 – Updated: 2026-02-26 16:07
VLAI
EPSS
VEX
Title
Use-after-Free in sentry!sentry_span_set_data() in NI LabVIEW
Summary
There is a use-after-free vulnerability in sentry!sentry_span_set_data() when parsing a corrupted VI file. This vulnerability may result in information disclosure or arbitrary code execution. Successful exploitation requires an attacker to get a user to open a specially crafted VI. This vulnerability affects NI LabVIEW 2025 Q3 (25.3) and prior versions
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-19 04:55 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| NI | LabVIEW |
Affected:
0 , ≤ 22.3.6
(semver)
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CVE-2025-64183 (GCVE-0-2025-64183)
Vulnerability from cvelistv5 – Published: 2025-11-10 21:29 – Updated: 2025-11-14 18:38
VLAI
EPSS
VEX
Title
OpenEXR has use after free in PyObject_StealAttrString
Summary
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.2.0 through 3.2.4, 3.3.0 through 3.3.5, and 3.4.0 through 3.4.2, there is a use-after-free in PyObject_StealAttrString of pyOpenEXR_old.cpp. The legacy adapter defines PyObject_StealAttrString that calls PyObject_GetAttrString to obtain a new reference, immediately decrefs it, and returns the pointer. Callers then pass this dangling pointer to APIs like PyLong_AsLong/PyFloat_AsDouble, resulting in a use-after-free. This is invoked in multiple places (e.g., reading PixelType.v, Box2i, V2f, etc.) Versions 3.2.5, 3.3.6, and 3.4.3 fix the issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-11-14 18:38 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/AcademySoftwareFoundation/open… | x_refsource_CONFIRM |
| https://github.com/AcademySoftwareFoundation/open… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| AcademySoftwareFoundation | openexr |
Affected:
>= 3.2.0, < 3.2.5
Affected: >= 3.3.0, < 3.3.6 Affected: >= 3.4.0, < 3.4.3 |
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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.