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

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Adobe / Acrobat DC	affected 0 through 25.001.21265; unaffected 25.001.21288
Adobe / Acrobat Reader DC	affected 0 through 25.001.21265; unaffected 25.001.21288
Adobe / Acrobat 2024	affected 0 through 24.001.30307 (Win), 24.001.30308 (Mac); unaffected 24.001.30356

CWE

CWE-295

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.