CVE-2026-27221

Medium

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.

SeverityMedium

CVSS5.5

Exploit probability—

Product

Adobe Acrobat Dc

PublishedMar 10, 2026

First seenMar 10, 2026

Weakness typeCWE-295CWE-295

How to fix

Update

adobe acrobat_dc25.001.21288 or later
adobe acrobat_reader_dc25.001.21288 or later
adobe acrobat24.001.30356 or later

Vendor advisories

helpx.adobe.com/security/products/acrobat/apsb26-26.html

Affected products

Product	Affected versions	Fixed in
adobe acrobat_dc	v < 25.001.21288	25.001.21288
adobe acrobat_reader_dc	v < 25.001.21288	25.001.21288
adobe acrobat	24.001.20604 ≤ v < 24.001.30356	24.001.30356

Check your version

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