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CVE-2026-81987: Acrobat Reader | Integer Overflow or Wraparound (CWE-190)

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% 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-190

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.

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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