In GnuPG through 2.4.8, armor_filter in g10/armor.c has two increments of an index variable where one is intended, leading to an out-of-bounds write for crafted input. (For Extende — CVE-2025-68973
Date
Source
MSRC
MSRC
Vendor
Microsoft
Microsoft
Threat
high
high
CVSS
7.8
7.8
Summary
Advisory CVE-2025-68973. In GnuPG through 2.4.8, armor_filter in g10/armor.c has two increments of an index variable where one is intended, leading to an… Vendor: Microsoft. Source: MSRC. Threat: high. CVSS 7.8. See the official advisory…
What to do
General, cautious steps (verify details in the official source):
- Prioritize patching or mitigation immediately (treat as actively risky).
- Identify affected product versions in your inventory and verify whether you are impacted.
- Apply vendor patches/updates or recommended mitigations as soon as available.
- Read the official advisory for exact affected versions and remediation steps.