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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9833 vulnerabilities reference this CWE, most recent first.
CVE-2023-38573 (GCVE-0-2023-38573)
Vulnerability from cvelistv5 – Published: 2023-11-27 15:25 – Updated: 2025-11-04 19:17
VLAI
EPSS
VEX
Summary
A use-after-free vulnerability exists in the way Foxit Reader 12.1.2.15356 handles a signature field. A specially crafted Javascript code inside a malicious PDF document can trigger reuse of a previously freed object, which can lead to memory corruption and result in arbitrary code execution. An attacker needs to trick the user into opening the malicious file to trigger this vulnerability. Exploitation is also possible if a user visits a specially crafted, malicious site if the browser plugin extension is enabled.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Foxit | Foxit Reader |
Affected:
12.1.3.15356
|
|
| foxit | reader |
Affected:
12.1.3.15356
cpe:2.3:a:foxit:reader:*:*:*:*:*:*:*:* |
Credits
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CVE-2023-38243 (GCVE-0-2023-38243)
Vulnerability from cvelistv5 – Published: 2023-08-10 13:17 – Updated: 2025-02-27 21:05
VLAI
EPSS
VEX
Title
ZDI-CAN-21252: Adobe Acrobat Reader DC JBIG2 File Parsing Use-After-Free Information Disclosure Vulnerability
Summary
Adobe Acrobat Reader versions 23.003.20244 (and earlier) and 20.005.30467 (and earlier) are affected by a Use-After-Free vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
0 , ≤ 23.003.20244
(semver)
|
Date Public
2023-08-08 17:00
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CVE-2023-38238 (GCVE-0-2023-38238)
Vulnerability from cvelistv5 – Published: 2023-08-10 13:17 – Updated: 2026-05-28 19:11
VLAI
EPSS
VEX
Title
ZDI-CAN-21243: Adobe Acrobat Reader DC Font Parsing Use-After-Free Information Disclosure Vulnerability
Summary
Adobe Acrobat Reader versions 23.003.20244 (and earlier) and 20.005.30467 (and earlier) are affected by a Use-After-Free vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
0 , ≤ 23.003.20244
(semver)
|
Date Public
2023-08-08 17:00
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CVE-2023-38230 (GCVE-0-2023-38230)
Vulnerability from cvelistv5 – Published: 2023-08-10 13:17 – Updated: 2025-02-27 21:04
VLAI
EPSS
VEX
Title
ZDI-CAN-21318: Adobe Acrobat Reader DC Font Parsing Use-After-Free Information Disclosure Vulnerability
Summary
Adobe Acrobat Reader versions 23.003.20244 (and earlier) and 20.005.30467 (and earlier) are affected by a Use-After-Free vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
0 , ≤ 23.003.20244
(semver)
|
Date Public
2023-08-08 17:00
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CVE-2023-38228 (GCVE-0-2023-38228)
Vulnerability from cvelistv5 – Published: 2023-08-10 13:17 – Updated: 2026-05-28 19:09
VLAI
EPSS
VEX
Title
ZDI-CAN-21317: Adobe Acrobat Reader DC Font Parsing Use-After-Free Remote Code Execution Vulnerability
Summary
Adobe Acrobat Reader versions 23.003.20244 (and earlier) and 20.005.30467 (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: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
0 , ≤ 23.003.20244
(semver)
|
Date Public
2023-08-08 17:00
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CVE-2023-38227 (GCVE-0-2023-38227)
Vulnerability from cvelistv5 – Published: 2023-08-10 13:17 – Updated: 2026-05-28 19:06
VLAI
EPSS
VEX
Title
ZDI-CAN-21241: Adobe Acrobat Reader DC Font Parsing Use-After-Free Remote Code Execution Vulnerability
Summary
Adobe Acrobat Reader versions 23.003.20244 (and earlier) and 20.005.30467 (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 (v2.0.3)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
0 , ≤ 23.003.20244
(semver)
|
Date Public
2023-08-08 17:00
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CVE-2023-38225 (GCVE-0-2023-38225)
Vulnerability from cvelistv5 – Published: 2023-08-10 13:17 – Updated: 2026-05-28 18:54
VLAI
EPSS
VEX
Title
ZDI-CAN-21118: Adobe Acrobat Reader DC AcroForm Use-After-Free Remote Code Execution Vulnerability
Summary
Adobe Acrobat Reader versions 23.003.20244 (and earlier) and 20.005.30467 (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 (v2.0.3)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
0 , ≤ 23.003.20244
(semver)
|
Date Public
2023-08-08 17:00
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CVE-2023-38224 (GCVE-0-2023-38224)
Vulnerability from cvelistv5 – Published: 2023-08-10 13:17 – Updated: 2025-02-27 21:05
VLAI
EPSS
VEX
Title
ZDI-CAN-21122: Adobe Acrobat Reader DC Annotation Use-After-Free Remote Code Execution Vulnerability
Summary
Adobe Acrobat Reader versions 23.003.20244 (and earlier) and 20.005.30467 (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 (v2.0.3)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
0 , ≤ 23.003.20244
(semver)
|
Date Public
2023-08-08 17:00
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CVE-2023-38222 (GCVE-0-2023-38222)
Vulnerability from cvelistv5 – Published: 2023-08-10 13:17 – Updated: 2026-05-28 19:05
VLAI
EPSS
VEX
Title
ZDI-CAN-21103: Adobe Acrobat Reader DC AcroForm spawnPageFromTemplate Use-After-Free Remote Code Execution Vulnerability
Summary
Adobe Acrobat Reader versions 23.003.20244 (and earlier) and 20.005.30467 (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 (v2.0.3)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
0 , ≤ 23.003.20244
(semver)
|
Date Public
2023-08-08 17:00
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CVE-2023-38216 (GCVE-0-2023-38216)
Vulnerability from cvelistv5 – Published: 2023-10-11 11:40 – Updated: 2025-02-27 20:42
VLAI
EPSS
VEX
Title
ZDI-CAN-21404: Adobe Bridge Font Parsing Use-After-Free Information Disclosure Vulnerability
Summary
Adobe Bridge versions 12.0.4 (and earlier) and 13.0.3 (and earlier) are affected by a Use After Free vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/bridge/… | vendor-advisory |
Date Public
2023-10-10 17:00
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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.