ZDI-26-674: Adobe Acrobat Reader DC Annotation Out-Of-Bounds Write 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-2026-81981.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Compensating control
Apply mitigation for ZDI-26-674 by blocking/limiting exposure of Adobe Acrobat Reader DC to malicious pages and files (user interaction is required: the target must visit a malicious page or open a malicious file).
- Operational
Ensure users are protected from opening suspicious/malicious files or visiting untrusted links until Adobe Acrobat Reader DC is patched for the issue (CVE-2026-81981 / ZDI-26-674).
Event History
Frequently Asked Questions
What must an attacker do to exploit this issue?
The attacker must persuade the target to visit a malicious page or open a malicious file. Successful exploitation can allow execution of arbitrary code on the affected installation.
Is user interaction required?
Yes. The target must visit a malicious page or open a malicious file for exploitation to occur.
How severe is this vulnerability?
ZDI assigned this issue a CVSS score of 7.8, and the listed risk score is 77.