CVE-2026-81983: Out-of-bounds Write (CWE-787) in Adobe Adobe Acrobat

CVE-2026-81983 is an out-of-bounds write vulnerability in Adobe Acrobat that could lead to arbitrary code execution in the context of the current user. Successful exploitation requires the victim to open a crafted malicious file, enabling an attacker to execute code with user-level privileges. The vulnerability affects Adobe Acrobat versions up to and including 26.002.21900 and 24.001.30383. The CVSS 3.1 base score is 7.8, indicating high severity, with attack vector local, low attack complexity, no privileges required, user interaction required, and high impact on confidentiality, integrity, and availability.

An attacker who successfully exploits this vulnerability can execute arbitrary code with the same privileges as the current user. This could lead to full compromise of the affected user's environment. However, exploitation requires user interaction by opening a malicious file, limiting the attack vector to targeted scenarios.

No patch or official fix information is provided in the available data. Patch status is not yet confirmed — check the Adobe vendor advisory for current remediation guidance. Until a fix is available, users should exercise caution when opening files from untrusted sources to prevent exploitation.