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Fencer Intel
critical 9.8

CVE-2026-118131 json

GnuPG (version 2.5.21) for Windows contains a vulnerability where default Discretionary Access Control List (DACL) inheritance on the C:\Pr…

published 13d ago modified 5d ago also EUVD-2026-111235

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits
0
none known

Summary

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.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-118131 updated cvss 7.3

gnupg2: gnupg2: Arbitrary code execution via insecure directory permissions

  • Red Hat OpenShift Container Platform 4 openshift/ose-rhel-coreos-8, openshift/ose-rhel-coreos-9 Red Hat OpenShift Container Platform 5 openshift/ose-rhel-coreos-9
    affected: no fix available
  • Red Hat Enterprise Linux 6 gnupg2, gnupg2-smime, gnupg2 2.4.5-5.el10 Red Hat Enterprise Linux 7 gnupg2, gnupg2-smime, gnupg2 2.4.5-5.el10
    not affected: vulnerable code not present
  • Red Hat Enterprise Linux 8 gnupg2, gnupg2-smime, gnupg2 2.4.5-5.el10 Red Hat Enterprise Linux 9 gnupg2, gnupg2-smime, gnupg2 2.4.5-5.el10 Red Hat Enterprise Linux 10 gnupg2 2.4.5-5.el10
    not affected: component not present
  • Red Hat Hardened Images gnupg2 2.4.5-5.el10
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
5d ago

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • GnuPG GnuPG

Classification

Weakness
  • CWE-732 Incorrect Permission Assignment for Critical Resource
  • CWE-379 Creation of Temporary File in Directory with Insecure Permissions
  • CWE-427 Uncontrolled Search Path Element

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.