CVE-2026-81991: Out-of-bounds Read (CWE-125) in Adobe Adobe Acrobat
Adobe Acrobat contains an out-of-bounds read vulnerability that may allow an attacker to disclose sensitive memory information. Exploitation requires user interaction, specifically opening a malicious file. The vulnerability has a medium severity rating with a CVSS score of 5.5.
AI Analysis
Technical Summary
CVE-2026-81991 is an out-of-bounds read vulnerability (CWE-125) in Adobe Acrobat Reader. This flaw could be exploited by an attacker to disclose sensitive information from memory. Successful exploitation requires that a victim opens a crafted malicious file, enabling the attacker to read memory beyond intended bounds. The vulnerability does not impact integrity or availability but affects confidentiality.
Potential Impact
The vulnerability can lead to disclosure of sensitive information from the application's memory. There is no indication of integrity or availability impact. Exploitation requires user interaction, limiting the attack vector to scenarios where a user opens a malicious file.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been published by Adobe at this time.
CVE-2026-81991: Out-of-bounds Read (CWE-125) in Adobe Adobe Acrobat
Description
Adobe Acrobat contains an out-of-bounds read vulnerability that may allow an attacker to disclose sensitive memory information. Exploitation requires user interaction, specifically opening a malicious file. The vulnerability has a medium severity rating with a CVSS score of 5.5.
CVSS v3.1
Score 5.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-81991 is an out-of-bounds read vulnerability (CWE-125) in Adobe Acrobat Reader. This flaw could be exploited by an attacker to disclose sensitive information from memory. Successful exploitation requires that a victim opens a crafted malicious file, enabling the attacker to read memory beyond intended bounds. The vulnerability does not impact integrity or availability but affects confidentiality.
Potential Impact
The vulnerability can lead to disclosure of sensitive information from the application's memory. There is no indication of integrity or availability impact. Exploitation requires user interaction, limiting the attack vector to scenarios where a user opens a malicious file.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been published by Adobe at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- adobe
- Date Reserved
- 2026-08-27T21:20:45.366Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6aa07235acd9273b4931f711
Added to database: 09/08/2026, 20:38:13 UTC
Last enriched: 09/08/2026, 20:53:34 UTC
Last updated: 09/09/2026, 00:22:36 UTC
Views: 4
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