Common Weakness Enumeration

CWE-416

Allowed

Use After Free

Abstraction: Variant · Status: Stable

API response cwe.mitre.org

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

9978 vulnerabilities reference this CWE, most recent first.

CVE-2021-28562 (GCVE-0-2021-28562)

Vulnerability from cvelistv5 – Published: 2021-06-28 13:45 – Updated: 2024-09-16 17:39
VLAI
Title
Adobe Acrobat Reader use-after-free could lead to arbitrary code execution
Summary
Acrobat Reader DC versions versions 2021.001.20150 (and earlier), 2020.001.30020 (and earlier) and 2017.011.30194 (and earlier) are affected by a Use After Free vulnerability when executing search queries through Javascript. An unauthenticated attacker could leverage this vulnerability to achieve 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
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-416 - Use After Free (CWE-416)
Assigner
References
Impacted products
Vendor Product Version
Adobe Acrobat Reader Affected: unspecified , ≤ 2020.001.30020 (custom)
Affected: unspecified , ≤ 2021.001.20150 (custom)
Affected: unspecified , ≤ 2017.011.30194 (custom)
Affected: unspecified , ≤ None (custom)
Create a notification for this product.
Date Public
2021-05-11 00:00
Show details on NVD website
To clipboard 

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CVE-2021-28553 (GCVE-0-2021-28553)

Vulnerability from cvelistv5 – Published: 2021-09-02 16:07 – Updated: 2024-09-16 18:14
VLAI
Title
Adobe Acrobat Reader use-after-free vulnerability could lead to arbitrary code execution
Summary
Acrobat Reader DC versions versions 2021.001.20150 (and earlier), 2020.001.30020 (and earlier) and 2017.011.30194 (and earlier) are affected by an Use After Free vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve 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
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-416 - Use After Free (CWE-416)
Assigner
References
Impacted products
Vendor Product Version
Adobe Acrobat Reader Affected: unspecified , ≤ 2020.001.30020 (custom)
Affected: unspecified , ≤ 2021.001.20150 (custom)
Affected: unspecified , ≤ 2017.011.30194 (custom)
Affected: unspecified , ≤ None (custom)
Create a notification for this product.
Date Public
2021-05-11 00:00
Show details on NVD website
To clipboard 

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CVE-2021-28552 (GCVE-0-2021-28552)

Vulnerability from cvelistv5 – Published: 2021-08-24 17:50 – Updated: 2024-09-16 22:56
VLAI
Title
Adobe Acrobat Reader DC XFA Template Use-After-Free Remote Code Execution Vulnerability
Summary
Acrobat Reader DC versions versions 2021.001.20155 (and earlier), 2020.001.30025 (and earlier) and 2017.011.30196 (and earlier) are affected by an Use After Free vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve 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)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-416 - Use After Free (CWE-416)
Assigner
References
Impacted products
Vendor Product Version
Adobe Acrobat Reader Affected: unspecified , ≤ 2021.001.20155 (custom)
Affected: unspecified , ≤ 2020.001.30025 (custom)
Affected: unspecified , ≤ 2017.011.30196 (custom)
Affected: unspecified , ≤ None (custom)
Create a notification for this product.
Date Public
2021-06-08 00:00
Show details on NVD website
To clipboard 

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CVE-2021-28550 (GCVE-0-2021-28550)

Vulnerability from cvelistv5 – Published: 2021-09-02 16:07 – Updated: 2025-10-21 23:25
VLAI
Title
Adobe Acrobat Reader use after free vulnerability could lead to arbitrary code execution
Summary
Acrobat Reader DC versions versions 2021.001.20150 (and earlier), 2020.001.30020 (and earlier) and 2017.011.30194 (and earlier) are affected by a Use After Free vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve 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
9.6 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-416 - Use After Free (CWE-416)
Assigner
References
Impacted products
Vendor Product Version
Adobe Acrobat Reader Affected: unspecified , ≤ 2020.001.30020 (custom)
Affected: unspecified , ≤ 2021.001.20150 (custom)
Affected: unspecified , ≤ 2017.011.30194 (custom)
Affected: unspecified , ≤ None (custom)
Create a notification for this product.
Date Public
2021-05-11 00:00
Show details on NVD website
To clipboard 

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CVE-2021-27649 (GCVE-0-2021-27649)

Vulnerability from cvelistv5 – Published: 2021-06-23 09:50 – Updated: 2024-09-16 23:05
VLAI
Summary
Use after free vulnerability in file transfer protocol component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to execute arbitrary code via unspecified vectors.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Synology DiskStation Manager (DSM) Affected: unspecified , < 6.2.3-25426-3 (custom)
Create a notification for this product.
Date Public
2021-06-23 00:00
Show details on NVD website
To clipboard 

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CVE-2021-27646 (GCVE-0-2021-27646)

Vulnerability from cvelistv5 – Published: 2021-03-12 06:45 – Updated: 2024-09-16 18:54
VLAI
Summary
Use After Free vulnerability in iscsi_snapshot_comm_core in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to execute arbitrary code via crafted web requests.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Synology Synology DiskStation Manager (DSM) Affected: unspecified , < 6.2.3-25426-3 (custom)
Create a notification for this product.
Date Public
2021-03-12 00:00
Show details on NVD website
To clipboard 

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CVE-2021-27268 (GCVE-0-2021-27268)

Vulnerability from cvelistv5 – Published: 2021-03-30 14:35 – Updated: 2024-08-03 20:48
VLAI
Summary
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PhantomPDF 10.1.0.37527. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of U3D objects in PDF files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-12295.
Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
Assigner
zdi
References
Impacted products
Vendor Product Version
Foxit PhantomPDF Affected: 10.1.0.37527
Create a notification for this product.
Credits
Mat Powell of Trend Micro Zero Day Initiative
Show details on NVD website
To clipboard 

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CVE-2021-27267 (GCVE-0-2021-27267)

Vulnerability from cvelistv5 – Published: 2021-03-30 14:35 – Updated: 2024-08-03 20:48
VLAI
Summary
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PhantomPDF 10.1.0.37527. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of U3D objects in PDF files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-12294.
Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
Assigner
zdi
References
Impacted products
Vendor Product Version
Foxit PhantomPDF Affected: 10.1.0.37527
Create a notification for this product.
Credits
Mat Powell of Trend Micro Zero Day Initiative
Show details on NVD website
To clipboard 

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CVE-2021-25394 (GCVE-0-2021-25394)

Vulnerability from cvelistv5 – Published: 2021-06-11 14:45 – Updated: 2025-10-21 23:25
VLAI
Summary
A use after free vulnerability via race condition in MFC charger driver prior to SMR MAY-2021 Release 1 allows arbitrary write given a radio privilege is compromised.
Severity
6.4 (Medium)
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Samsung Mobile Samsung Mobile Devices Affected: O(8.x), P(9.0), Q(10.0), R(11.0) , < SMR MAY-2021 Release 1 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2021-24037 (GCVE-0-2021-24037)

Vulnerability from cvelistv5 – Published: 2021-06-15 22:00 – Updated: 2024-08-03 19:21
VLAI
Summary
A use after free in hermes, while emitting certain error messages, prior to commit d86e185e485b6330216dee8e854455c694e3a36e allows attackers to potentially execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
Facebook Hermes Affected: commit prior to d86e185e485b6330216dee8e854455c694e3a36e
Create a notification for this product.
Show details on NVD website
To clipboard 

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  "dataVersion": "5.1"
}
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.

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