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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
11071 vulnerabilities reference this CWE, most recent first.
CVE-2026-91806 (GCVE-0-2026-91806)
Vulnerability from cvelistv5 – Published: 2026-09-23 07:50 – Updated: 2026-09-23 14:41
VLAI
EPSS
VEX
Title
Foxit PDF Editor/Reader Doc Object Use-After-Free Information Disclosure Vulnerability
Summary
A use-after-free vulnerability exists in Foxit PDF Editor/Reader’s handling of PDF form fields. Embedded JavaScript may access form-field references after the corresponding fields have been released, resulting in an application crash.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 14:41 UTC
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Foxit Software Inc. | Foxit PDF Editor |
Affected:
Versions 2026.2 and earlier
Affected: Versions 14.0.7 and earlier Affected: Versions 13.2.6 and earlier |
|
| Foxit Software Inc. | Foxit PDF Reader |
Affected:
Versions 2026.2 and earlier
|
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CVE-2026-91805 (GCVE-0-2026-91805)
Vulnerability from cvelistv5 – Published: 2026-09-23 07:50 – Updated: 2026-09-23 14:45
VLAI
EPSS
VEX
Title
Use-after-free Vulnerability in Foxit PDF Editor/Reader Page-tree Handling
Summary
A use-after-free vulnerability exists in Foxit PDF Editor/Reader’s PDF page-tree handling. A specially crafted PDF can trigger page-structure changes during rendering, causing the application to access released page objects and resulting in memory corruption and an application crash.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 14:45 UTC
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Foxit Software Inc. | Foxit PDF Editor |
Affected:
Versions 2026.2 and earlier
Affected: Versions 14.0.7 and earlier Affected: Versions 13.2.6 and earlier |
|
| Foxit Software Inc. | Foxit PDF Reader |
Affected:
Versions 2026.2 and earlier
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CVE-2026-91799 (GCVE-0-2026-91799)
Vulnerability from cvelistv5 – Published: 2026-09-23 07:50 – Updated: 2026-09-23 14:42
VLAI
EPSS
VEX
Title
Foxit Editor/Reader Array resetForm Use-After-Free Vulnerability
Summary
A use-after-free vulnerability exists in Foxit PDF Editor/Reader’s handling of JavaScript array objects. A specially crafted PDF may cause the application to access a released object during array processing, potentially resulting in application crashes or arbitrary code execution.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 14:42 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 2026.2 and earlier
Affected: Versions 14.0.7 and earlier Affected: Versions 13.2.6 and earlier |
|
| Foxit Software Inc. | Foxit PDF Reader |
Affected:
Versions 2026.2 and earlier
|
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CVE-2026-91793 (GCVE-0-2026-91793)
Vulnerability from cvelistv5 – Published: 2026-09-23 07:51 – Updated: 2026-09-23 14:46
VLAI
EPSS
VEX
Title
Foxit PDF Editor/Reader Doc Object Use-After-Free Information Disclosure Vulnerability
Summary
When opening a specially crafted PDF, Foxit PDF Editor/Reader executes scripts that modify annotation rich-text attributes containing malformed font data. During subsequent annotation appearance reconstruction, it accesses an object after it has been released, resulting in a use-after-free condition and an application crash.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 14:46 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 2026.2 and earlier
Affected: Versions 14.0.7 and earlier Affected: Versions 13.2.6 and earlier |
|
| Foxit Software Inc. | Foxit PDF Reader |
Affected:
Versions 2026.2 and earlier
|
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CVE-2026-91792 (GCVE-0-2026-91792)
Vulnerability from cvelistv5 – Published: 2026-09-23 07:51 – Updated: 2026-09-23 14:47
VLAI
EPSS
VEX
Title
Foxit PDF Editor/Reader Annotation Use-After-Free Remote Code Execution Vulnerability
Summary
When processing a specially crafted PDF, Foxit PDF Editor/Reader may perform reentrant zoom and layout operations through page- and annotation-related JavaScript actions. This can cause the application to access page objects after they have been released, resulting in a use-after-free condition and an application crash.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 14:47 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 2026.2 and earlier
Affected: Versions 14.0.7 and earlier Affected: Versions 13.2.6 and earlier |
|
| Foxit Software Inc. | Foxit PDF Reader |
Affected:
Versions 2026.2 and earlier
|
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CVE-2026-91791 (GCVE-0-2026-91791)
Vulnerability from cvelistv5 – Published: 2026-09-23 07:51 – Updated: 2026-09-23 14:47
VLAI
EPSS
VEX
Title
Foxit PDF Editor/Reader Annotation Use-After-Free Remote Code Execution Vulnerability
Summary
When processing a specially crafted PDF file, Foxit PDF Editor/Reader may encounter a reentrant execution condition involving JavaScript triggered by page-visibility events. This can cause the application to access a released page-view object while calculating annotation boundaries, resulting in an invalid memory read and application crash.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 14:47 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 2026.2 and earlier
Affected: Versions 14.0.7 and earlier Affected: Versions 13.2.6 and earlier |
|
| Foxit Software Inc. | Foxit PDF Reader |
Affected:
Versions 2026.2 and earlier
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CVE-2026-91790 (GCVE-0-2026-91790)
Vulnerability from cvelistv5 – Published: 2026-09-23 07:51 – Updated: 2026-09-23 14:48
VLAI
EPSS
VEX
Title
Foxit PDF Editor/Reader Doc Object Use-After-Free Information Disclosure Vulnerability
Summary
When rendering the page image, Foxit PDF Editor/Reader fails to perform validation on image objects whose optional content attributes are malformed. As a result, the program may access an already-freed internal data structure, triggering a crash due to UAF.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 14:47 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:
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Affected: Versions 14.0.7 and earlier Affected: Versions 13.2.6 and earlier |
|
| Foxit Software Inc. | Foxit PDF Reader |
Affected:
Versions 2026.2 and earlier
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CVE-2026-91089 (GCVE-0-2026-91089)
Vulnerability from cvelistv5 – Published: 2026-09-15 07:15 – Updated: 2026-09-15 17:36 X_Open Source
VLAI
EPSS
VEX
Title
GPAC base_scenegraph.c gf_node_get_name_and_id use after free
Summary
A vulnerability was found in GPAC up to f1219cde. Impacted is the function gf_node_get_name_and_id of the file scenegraph/base_scenegraph.c. The manipulation results in use after free. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version abi-16.23 is recommended to address this issue. The patch is identified as 49dee5cad329cfed310c1682703df7daa47df31a. You should upgrade the affected component.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 17:35 UTC
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/403651 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/403651/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-91089 | third-party-advisory |
| https://vuldb.com/submit/919758 | third-party-advisory |
| https://github.com/gpac/gpac/issues/3809 | issue-tracking |
| https://github.com/user-attachments/files/3039983… | exploit |
| https://github.com/gpac/gpac/commit/49dee5cad329c… | patch |
| https://github.com/gpac/gpac/releases/tag/abi-16.23 | patch |
| https://github.com/gpac/gpac/ | product |
Impacted products
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CVE-2026-91087 (GCVE-0-2026-91087)
Vulnerability from cvelistv5 – Published: 2026-09-15 06:45 – Updated: 2026-09-15 13:53 X_Open Source
VLAI
EPSS
VEX
Title
GPAC Compositor media_object.c gf_mo_get_od_id use after free
Summary
A flaw has been found in GPAC up to f1219cde. This vulnerability affects the function gf_mo_get_od_id of the file compositor/media_object.c of the component Compositor. Executing a manipulation can lead to use after free. The attack may be performed from remote. The exploit has been published and may be used. Upgrading to version abi-16.24 is able to resolve this issue. This patch is called e34f4ba349d55cd1849f0bcf4cf46552732e2db7. Upgrading the affected component is advised.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 13:47 UTC
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/403649 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/403649/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-91087 | third-party-advisory |
| https://vuldb.com/submit/919756 | third-party-advisory |
| https://github.com/gpac/gpac/issues/3807 | issue-tracking |
| https://github.com/user-attachments/files/3039959… | exploit |
| https://github.com/gpac/gpac/commit/e34f4ba349d55… | patch |
| https://github.com/gpac/gpac/releases/tag/abi-16.24 | patch |
| https://github.com/gpac/gpac/ | product |
Impacted products
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CVE-2026-90852 (GCVE-0-2026-90852)
Vulnerability from cvelistv5 – Published: 2026-09-15 02:15 – Updated: 2026-09-15 18:19 X_Open Source
VLAI
EPSS
VEX
Title
luben zstd-jni Dictionary Sharing ZstdCompressCtx.java ZstdCompressCtx.loadDict use after free
Summary
A vulnerability has been found in luben zstd-jni up to 1.5.7-13. This vulnerability affects the function ZstdCompressCtx.loadDict of the file ZstdCompressCtx.java of the component Dictionary Sharing. Such manipulation leads to use after free. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.5.7-14 is able to resolve this issue. The name of the patch is a560131d7834598afd9cea6b7c107bc88e915936. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 18:17 UTC
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/403407 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/403407/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-90852 | third-party-advisory |
| https://vuldb.com/submit/927022 | third-party-advisory |
| https://github.com/luben/zstd-jni/issues/404 | exploitissue-tracking |
| https://github.com/luben/zstd-jni/commit/a560131d… | patch |
| https://github.com/luben/zstd-jni/releases/tag/v1… | patch |
| https://github.com/luben/zstd-jni/ | product |
Impacted products
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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.