Adobe Acrobat and Reader contain a prototype pollution vulnerability that allows for arbitrary code execution.

Adobe Acrobat contains a use-after-free vulnerability that allows for code execution

Adobe addressed a critical Acrobat Reader vulnerability, tracked as CVE-2026-34621, which is actively exploited to run malicious code. Adobe released emergency updates to address a critical vulnerability, tracked as CVE-2026-34621 (CVSS score of 8.6), in Adobe Acrobat Reader, which is being actively exploited. The flaw could allow attackers to execute malicious code on affected systems, […]

Adobe has released emergency updates to fix a critical security flaw in Acrobat Reader that has come under active exploitation in the wild. The vulnerability, assigned the CVE identifier CVE-2026-34621, carries a CVSS score of 8.6 out of 10.0. Successful exploitation of the flaw could allow an attacker to run malicious code on affected installations. It has been described as