ZDI-CAN-31010: ZDI-26-661: Adobe Acrobat Reader DC Annotation Use-After-Free Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Adobe Acrobat Reader DC. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-81985.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Compensating control
Apply the ZDI-recommended mitigation for ZDI-26-661 (Adobe Acrobat Reader DC Annotation Use-After-Free Remote Code Execution), given that user interaction is required (open a malicious file or visit a malicious page).
Event History
Frequently Asked Questions
What must an attacker do to exploit this issue?
An attacker must induce the target to visit a malicious page or open a malicious file. Successful exploitation can result in arbitrary code execution on the affected Adobe Acrobat Reader DC installation.
Is user interaction required?
Yes. The target must visit attacker-controlled malicious content or open a malicious file for exploitation to occur.