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Vulnerability record · CVE-2026-81991 · published 8 September 2026

CVE-2026-81991: Adobe acrobat out-of-bounds read vulnerability

Adobe · Acrobat

Acrobat Reader is affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to disclose sensitive information. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

5.5 CVSS 3.1 Medium EPSS 0.26% · top 84.0% CWE-125 · Out-of-bounds read
5.5CVSS 3.1 base score
0.26%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
1References
10 Sep 2026Last modified by NVD

Description

Acrobat Reader is affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to disclose sensitive information. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://helpx.adobe.com/security/products/acrobat/apsb26-141.html Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2014-0546Adobe Reader and Acrobat sandbox bypass allows privileged code executionAdobe Reader and Acrobat 10.x before 10.1.11 and 11.x before 11.0.08 on Windows contain a sandbox protection bypass. An attacker can escape the Reade…KEVEPSS 22%analysed9.8CVE-2013-3346Adobe Reader and Acrobat memory corruption allows code executionAdobe Reader and Acrobat 9.x before 9.5.5, 10.x before 10.1.7, and 11.x before 11.0.03 contain an out-of-bounds write (CWE-787) that corrupts memory.…KEVEPSS 79%analysed9.8CVE-2013-2729Adobe Reader and Acrobat integer overflow allows code executionAdobe Reader and Acrobat contain an integer overflow (CWE-190) that can be triggered by unspecified vectors, leading to arbitrary code execution. It …KEVEPSS 67%analysed9.8CVE-2011-2462Adobe Reader and Acrobat U3D memory corruption code executionAn out-of-bounds write in the U3D component of Adobe Reader and Acrobat allows remote attackers to corrupt memory and execute arbitrary code. The fla…KEVEPSS 89%analysed8.8CVE-2021-28550Adobe Acrobat and Reader use-after-free allows code executionAdobe Acrobat Reader DC (2021.001.20150, 2020.001.30020, 2017.011.30194 and earlier) and related Acrobat products contain a use-after-free (CWE-416) …KEVEPSS 52%analysed8.8CVE-2021-21017Adobe Acrobat and Reader heap buffer overflow via malicious fileAdobe Acrobat Reader DC (2020.013.20074, 2020.001.30018, 2017.011.30188 and earlier) contains a heap-based buffer overflow (CWE-122/CWE-787) triggere…KEVEPSS 86%analysed8.8CVE-2018-4990Adobe Acrobat and Reader double free allows code executionAdobe Acrobat and Reader contain a double free (CWE-415) in versions 2018.011.20038 and earlier, 2017.011.30079 and earlier, and 2015.006.30417 and e…KEVEPSS 36%analysed8.8CVE-2014-0496Adobe Reader and Acrobat use-after-free code executionAdobe Reader and Acrobat 10.x before 10.1.9 and 11.x before 11.0.06 on Windows and Mac OS X contain a use-after-free (CWE-416) that allows arbitrary …KEVEPSS 40%analysed

Source: NIST National Vulnerability Database (record CVE-2026-81991), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.