CVE-2026-81976: Adobe Acrobat Reader use-after-free

CVE-2026-81976 · Severity: high · CVSS 7.8 · Published 2026-09-08

Adobe Acrobat Reader is widely used to view and work with PDF documents in corporate and personal environments. A use-after-free vulnerability allows attackers to execute arbitrary code on a user's system when they open a malicious PDF file, potentially leading to data theft, malware installation, or system compromise.

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-2026-81976 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-81976 being exploited in the wild.
How severe is CVE-2026-81976?
High severity, with a CVSS score of 7.8, published 8 September 2026.
Which products and versions are affected?
Adobe Acrobat Reader <UNKNOWN>.
Is there a fix for CVE-2026-81976?
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-2026-81976 attacked?
It is attacked with local access.
Am I affected by CVE-2026-81976?
Check whether you run Adobe Acrobat, Adobe Acrobat Reader, Adobe Acrobat Dc or one of the others listed at an affected version. 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

This is a use-after-free vulnerability in Adobe Acrobat Reader that allows arbitrary code execution in the context of the current user. The vulnerability requires user interaction—specifically, a victim must open a malicious PDF file to trigger the exploit. The defect likely stems from improper memory management in the PDF parsing or rendering engine, where a previously freed memory region is accessed or dereferenced. Exploitation results in arbitrary code execution with the privileges of the logged-in user. No patch details are currently available in the provided advisory.

Affected products

  • Adobe Acrobat Reader <UNKNOWN>

Timeline

  • 2026-09-08: disclosed

References

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