CVE-2026-80161

Analyzed Analyzed - Analysis Complete

Access of Resource Using Incompatible Type in Acrobat Reader

Publication date: 2026-09-08

Last updated on: 2026-09-10

Assigner: Adobe Systems Incorporated

Description

Acrobat Reader is affected by an Access of Resource Using Incompatible Type ('Type Confusion') vulnerability that could result in arbitrary code execution in the context of the current user. An attacker could exploit this vulnerability to execute arbitrary code. 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-2026-80161

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-843	The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

Attack-Flow Graph

Executive Summary

This is a Type Confusion vulnerability in Acrobat Reader that allows an attacker to execute arbitrary code on a victim's system. It occurs when the software mishandles data types, leading to unintended memory access. Exploitation requires the victim to open a specially crafted malicious file.

Detection Guidance

This vulnerability requires user interaction to exploit, so detection involves monitoring for suspicious PDF files or unusual behavior when opening them. Check for recently opened PDFs from unknown sources. Use antivirus tools to scan for known exploits targeting Acrobat Reader.

Impact Analysis

If exploited, this vulnerability could allow an attacker to run malicious code on your computer, potentially stealing data, installing malware, or taking control of your system. Since it requires user interaction, you would need to open a harmful file for the attack to succeed.

Mitigation Strategies

Update Acrobat Reader to the latest version immediately. Disable PDF opening from untrusted sources or use a sandboxed environment. Disable JavaScript in Acrobat Reader settings to reduce attack surface. Monitor Adobe security advisories for patches.

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