CVE-2026-27278: Use After Free (CWE-416) in Adobe Acrobat Reader
CVE-2026-27278 is a Use After Free vulnerability in Adobe Acrobat Reader that affects multiple versions up to 25.1.21265. Exploitation requires user interaction by opening a malicious file and can lead to arbitrary code execution with the privileges of the current user. The vulnerability has a high severity rating with a CVSS score of 7.8.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-27278) is a Use After Free (CWE-416) issue in Adobe Acrobat Reader. It affects multiple versions of the product up to version 25.1.21265. Successful exploitation requires the user to open a specially crafted malicious file, which may result in arbitrary code execution under the current user's privileges. The CVSS v3.1 base score is 7.8, indicating high severity, with attack vector local, low attack complexity, no privileges required, user interaction required, and impacts to confidentiality, integrity, and availability.
Potential Impact
An attacker who successfully exploits this vulnerability can execute arbitrary code with the privileges of the current user. This could lead to compromise of the affected system depending on the user's permissions. Exploitation requires user interaction, specifically opening a malicious file.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Users should exercise caution when opening files from untrusted sources until a patch is available.
CVE-2026-27278: Use After Free (CWE-416) in Adobe Acrobat Reader
Description
CVE-2026-27278 is a Use After Free vulnerability in Adobe Acrobat Reader that affects multiple versions up to 25.1.21265. Exploitation requires user interaction by opening a malicious file and can lead to arbitrary code execution with the privileges of the current user. The vulnerability has a high severity rating with a CVSS score of 7.8.
CVSS v3.1
Score 7.8high
Affected software
pkg:github/adobe/acrobat-readerRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-27278) is a Use After Free (CWE-416) issue in Adobe Acrobat Reader. It affects multiple versions of the product up to version 25.1.21265. Successful exploitation requires the user to open a specially crafted malicious file, which may result in arbitrary code execution under the current user's privileges. The CVSS v3.1 base score is 7.8, indicating high severity, with attack vector local, low attack complexity, no privileges required, user interaction required, and impacts to confidentiality, integrity, and availability.
Potential Impact
An attacker who successfully exploits this vulnerability can execute arbitrary code with the privileges of the current user. This could lead to compromise of the affected system depending on the user's permissions. Exploitation requires user interaction, specifically opening a malicious file.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Users should exercise caution when opening files from untrusted sources until a patch is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- adobe
- Date Reserved
- 2026-02-18T22:02:41.389Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69b178e02f860ef943e659be
Added to database: 03/11/2026, 14:14:56 UTC
Last enriched: 07/23/2026, 23:08:51 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 245
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