CVE-2026-27221

Acrobat Reader | Improper Certificate Validation (CWE-295)

Published Mar 10, 2026 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Adobe acrobat
Adobe acrobat Dc
Adobe acrobat Reader Dc
Apple
Apple macos
Microsoft
Microsoft windows
CPEs cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*
cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*
cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Adobe acrobat
Adobe acrobat Dc
Adobe acrobat Reader Dc
Apple
Apple macos
Microsoft
Microsoft windows
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Adobe
Adobe acrobat Reader
Vendors & Products Adobe
Adobe acrobat Reader
Type Values Removed Values Added
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.
Title Acrobat Reader | Improper Certificate Validation (CWE-295)
Weaknesses CWE-295
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
adobe
Published
Updated
Aug 27, 2026, 10:09 PM
Reserved
Feb 18, 2026, 10:02 PM
Status
Analyzed
Published
Mar 10, 2026, 10:16 PM
Modified
Aug 28, 2026, 12:17 AM