CVE-2026-80161: Adobe Acrobat Reader type confusion vulnerability

CVE-2026-80161 · Severity: high · CVSS 7.8 · Published 2026-09-08

Adobe Acrobat Reader contains a type confusion flaw that allows attackers to execute arbitrary code with user privileges. An attacker must trick a user into opening a malicious PDF file to trigger the vulnerability, potentially compromising the user's system and data.

Technologies: Adobe Acrobat, Adobe Acrobat Reader, Adobe Acrobat Dc, Adobe Acrobat Reader Dc, Apple macOS, Microsoft Windows. Vendors: Adobe, Apple, Microsoft.

Quick answers

Is CVE-2026-80161 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-80161 being exploited in the wild.
How severe is CVE-2026-80161?
High severity, with a CVSS score of 7.8, published 8 September 2026.
Which products and versions are affected?
Adobe Acrobat Reader.
Is there a fix for CVE-2026-80161?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-80161 attacked?
It is attacked with local access, in a software library.
Am I affected by CVE-2026-80161?
Check whether you run Adobe Acrobat, Adobe Acrobat Reader, Adobe Acrobat Dc or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a type confusion issue (CWE-843) affecting Acrobat Reader's file parsing logic. An attacker can craft a malicious PDF that exploits improper type handling to achieve arbitrary code execution in the context of the logged-in user. The attack requires user interaction—specifically opening a malicious file—and no additional authentication or network access is needed beyond file delivery. A successful exploit grants the attacker code execution at user privilege level, potentially allowing data theft, system compromise, or lateral movement.

Affected products

  • Adobe Acrobat Reader

Timeline

  • 2026-09-08: disclosed

References

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