Description
GnuPG (version 2.5.21) for Windows contains a vulnerability where default Discretionary Access Control List (DACL) inheritance on the C:\ProgramData directory allows members of the BUILTIN\Users group to create arbitrary subdirectories under this path. An attacker with low-privilege access can create the expected GnuPG configuration directory and inject malicious configuration files consumed by GnuPG components. This can result in code execution within the security context of the victim user.
Published: 2026-10-27
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Wed, 04 Nov 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Wed, 04 Nov 2026 18:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-379
CWE-427
CWE-732
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 27 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
First Time appeared Gnupg
Gnupg gnupg
Vendors & Products Gnupg
Gnupg gnupg

Tue, 27 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Tue, 27 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Description GnuPG (version 2.5.21) for Windows contains a vulnerability where default Discretionary Access Control List (DACL) inheritance on the C:\ProgramData directory allows members of the BUILTIN\Users group to create arbitrary subdirectories under this path. An attacker with low-privilege access can create the expected GnuPG configuration directory and inject malicious configuration files consumed by GnuPG components. This can result in code execution within the security context of the victim user.
Title CVE-2026-118131
References

cve-icon MITRE

Status: PUBLISHED

Assigner: certcc

Published:

Updated: 2026-11-04T17:44:47.019Z

Reserved: 2026-10-27T17:21:42.310Z

Link: CVE-2026-118131

cve-icon Vulnrichment

Updated: 2026-11-04T17:44:42.175Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-27T18:17:36.700

Modified: 2026-11-04T18:17:42.653

Link: CVE-2026-118131

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-04T20:15:15Z

Weaknesses