CVE-2026-81992 is a heap-based buffer overflow vulnerability in Adobe Acrobat. This flaw allows an attacker to execute arbitrary code in the context of the current user if the victim opens a malicious file. The vulnerability requires user interaction and does not require elevated privileges. The CVSS 3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. No patch or official remediation information is currently available, and no known exploits are reported in the wild.

Successful exploitation 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 session. The vulnerability impacts confidentiality, integrity, and availability of the system. However, exploitation requires the victim to open a malicious file, limiting the attack vector to user interaction.

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