CVE-2026-81987 is an integer overflow or wraparound vulnerability in Adobe Acrobat Reader. This flaw could be exploited by an attacker to execute arbitrary code in the context of the current user after the victim opens a crafted malicious file. The CVSS 3.1 base score is 7.8, indicating high impact on confidentiality, integrity, and availability. No vendor advisory or patch information is provided, and no known exploits are reported in the wild at this time.

Successful exploitation could lead to arbitrary code execution with the privileges of the user running Adobe Acrobat Reader, potentially compromising confidentiality, integrity, and availability of the affected system. User interaction is required, limiting the attack vector to scenarios where a user opens a malicious file.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should exercise caution when opening files from untrusted sources.