Adobe Acrobat Reader fixes an actively exploited vulnerability

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[TLP:CLEAR] Adobe Acrobat Reader fixes an actively exploited vulnerability

Adobe fixes a high-severity, actively exploited vulnerability in Acrobat products [1]. Fixed versions of the individual products: Acrobat DC - 26.001.21411 Acrobat Reader DC - 26.001.21411 Acrobat 2024 (Windows) - 24.001.30362 Acrobat 2024 (macOS) - 24.001.30360

Adobe Acrobat DC, Acrobat Reader DC, Acrobat 2024 - RCE (CVE-2026-34621)

CVSS 8.6 (High)

Allows an unauthenticated local attacker, under certain conditions, to manipulate application objects and potentially execute code [1].

The vulnerability is present in products:

Acrobat DC; <=26.001.21367;
Acrobat Reader DC; <=26.001.21367;
Acrobat 2024; <=24.001.30356;

CVSS: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

More information:

CVE-2026-34621 at cve.org, NVD
CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') at cwe.mitre.org

The vulnerability was publicly disclosed 11. 4. 2026.

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[TLP:CLEAR] Adobe Acrobat Reader fixes an actively exploited vulnerability

Adobe Acrobat DC, Acrobat Reader DC, Acrobat 2024 - RCE (CVE-2026-34621)

CVSS 8.6 (High)

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