Heap-based Buffer Overflow in Acrobat Reader

Publication date: 2026-09-08

Last updated on: 2026-09-10

Assigner: Adobe Systems Incorporated

Description

Acrobat Reader is affected by a Heap-based Buffer Overflow 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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-08

Last Modified

2026-09-10

Generated

2026-09-29

AI Q&A

2026-09-10

EPSS Evaluated

2026-09-27

NVD

CVE-2026-81992

Affected Vendors & Products

Vendor	Product	Version / Range
adobe	acrobat_dc	From 15.008.20082 (inc) to 26.002.21901 (exc)
adobe	acrobat_reader_dc	From 15.008.20082 (inc) to 26.002.21901 (exc)
adobe	acrobat	From 24.001.20604 (inc) to 24.001.30429 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-122	A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

Attack-Flow Graph

Executive Summary

This is a Heap-based Buffer Overflow vulnerability in Acrobat Reader that could allow arbitrary code execution. It requires user interaction, meaning a victim must open a malicious file to trigger the issue.

Impact Analysis

If exploited, this vulnerability could let an attacker run malicious code on your system with the same privileges as your current user. This could lead to data theft, system compromise, or further attacks within your environment.

Mitigation Strategies

Update Adobe Acrobat Reader to the latest version to patch the vulnerability. Avoid opening untrusted files or attachments from unknown sources. Disable JavaScript in Acrobat Reader if not required to reduce attack surface.

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