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CVE-2026-81990: Acrobat Reader | Use After Free (CWE-416)

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-08 · updated 2026-09-10
• Weakness: CWE-416

Description

Acrobat Reader is affected by a Use After Free 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.

Affected products

• Adobe Acrobat for Edge: from 24.001.20604 before 24.001.30429 — fixed in 24.001.30429
• Adobe Acrobat DC: from 15.008.20082 before 26.002.21901 — fixed in 26.002.21901
• Adobe Acrobat Reader: from 15.008.20082 before 26.002.21901 — fixed in 26.002.21901

How to fix

Upgrade to a fixed version: Adobe Acrobat for Edge 24.001.30429; Adobe Acrobat DC 26.002.21901; Adobe Acrobat Reader 26.002.21901. Check the vendor advisory for mitigations.

References

• https://helpx.adobe.com/security/products/acrobat/apsb26-141.html

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