CVE-2026-81987

Analyzed Analyzed - Analysis Complete

Integer Overflow in Adobe Acrobat Reader Leading to Code Execution

Publication date: 2026-09-08

Last updated on: 2026-09-10

Assigner: Adobe Systems Incorporated

Description

Acrobat Reader is affected by an Integer Overflow or Wraparound 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

2026-09-09

EPSS Evaluated

2026-09-27

NVD

CVE-2026-81987

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-190	The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

Attack-Flow Graph

Executive Summary

Acrobat Reader is affected by an Integer Overflow or Wraparound vulnerability. This flaw could allow arbitrary code execution within the current user's context. Exploitation requires user interaction, specifically opening a malicious file.

Detection Guidance

Detection primarily relies on monitoring for suspicious files or unusual behavior when opening PDFs. Since exploitation requires user interaction, check for recently opened PDF files from untrusted sources. Use antivirus tools to scan for known malicious PDFs. No specific commands are provided in the context.

Impact Analysis

If exploited, this vulnerability could let attackers run malicious code on your system. This might lead to unauthorized access, data theft, or system compromise. Since it requires user interaction, opening a specially crafted file is necessary for exploitation.

Mitigation Strategies

Update Adobe Acrobat Reader to the latest version immediately. Avoid opening PDF files from untrusted sources. Disable JavaScript in Acrobat Reader if not required. Enable protected mode and protected view in Acrobat Reader settings.

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