CVE-2026-27221 MEDIUM

CVE-2026-27221: Acrobat Reader | Improper Certificate Validation (CWE-295)

Vendor Adobe
Product Acrobat Reader
Weakness CWE-295
Published March 10, 2026
Last update March 11, 2026
View on NVD All CVEs

CVSS base score

5.5/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Acrobat Reader versions 24.001.30307, 24.001.30308, 25.001.21265 and earlier are affected by an Improper Certificate Validation vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to spoof the identity of a signer. Exploitation of this issue requires user interaction.

Key dates

02Disclosure timeline

March 10, 2026 CVE published
March 11, 2026 Record updated