CVE-2026-27221

MediumCVSS 5.5/10Last modified Aug 28, 2026

Description

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-295

Affected software

VendorProductVersions
AdobeAcrobat DC<= 25.001.21265
AdobeAcrobat Reader DC<= 25.001.21265
AdobeAcrobat 2024<= 24.001.30307 (Win), 24.001.30308 (Mac)

References

Timeline

Published
Mar 10, 2026
Last modified
Aug 28, 2026
NVD status
Analyzed

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CVE-2026-27221: Medium severity, CVSS 5.5 | Vulnix