CVE-2026-81993

Analyzed Analyzed - Analysis Complete

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 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 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-2026-81993

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 disclosure of sensitive memory. It requires user interaction, meaning a victim must open a malicious file to trigger the issue.

Impact Analysis

An attacker could exploit this to access sensitive information stored in memory. Since it requires user interaction, opening an untrusted file could lead to information disclosure.

Compliance Impact

This vulnerability could lead to unauthorized disclosure of sensitive data, which may violate GDPR or HIPAA requirements for protecting personal or health information. Organizations using affected software may face compliance risks.

Mitigation Strategies

Update Acrobat Reader to the latest version to patch the vulnerability. Avoid opening untrusted or suspicious files. Disable JavaScript in Acrobat Reader if not required. Monitor for unusual memory usage or crashes that may indicate exploitation attempts.

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