CVE-2026-81981: Out-of-bounds Write (CWE-787) in Adobe Adobe Acrobat

CVE-2026-81981 is an out-of-bounds write vulnerability (CWE-787) in Adobe Acrobat Reader. Successful exploitation requires a victim to open a malicious file, which can result in arbitrary code execution within the context of the current user. The vulnerability affects Adobe Acrobat versions up to and including 26.002.21900 and 24.001.30383. The CVSS v3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability with low attack complexity but requiring user interaction.

Exploitation of this vulnerability could allow an attacker to execute arbitrary code with the privileges of the current user, potentially leading to full compromise of the affected system's user environment. The attack requires user interaction, specifically opening a malicious file, which limits the attack vector to social engineering or similar tactics.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch links or official fixes are provided in the input data, users should monitor Adobe's security advisories for updates. Until a patch is available, users should exercise caution when opening files from untrusted sources.