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CVE-2025-30258

Published: Mar 19, 2025Updated: Oct 16, 2025 Sources: CVE List NVD BDUCWE-754
NVD MITRE
2.7CVSSLOW
EPSS Score
0.2%
Top 92.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify signatures made from certain other signing keys, aka a "verification DoS."

CVSS Vector Breakdown

AV:LAC:HPR:NUI:RS:CC:NI:NA:L
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

CWE-754

Affected Products

gnupggnupg
LibraryLibrary
Security Products / pki-crypto
GnuPGGnuPG
LibraryLibrary
Security Products / pki-crypto
UbuntuCanonical Ltd.
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
Platform V SberLinux OS ServerАО «СберТех»
On-premOS
Operating Systems / linux-distro
gnupgoss-projectSecurity Productsaka libgcrypt, libksba
canonical ltd.commercialGBOperating Systemsaka canonical
red hat inc.commercialUSOperating Systemsaka red hat
ао «сбертех»commercialRUOperating Systemsaka ao sbertech, сбертех
and 2 more affected products View all →

Exploitability

Official Patch Available

References

https://dev.gnupg.org/T7527
dev.gnupg.org
https://dev.gnupg.org/rG48978ccb4e20866472ef18436a32744350a65158
dev.gnupg.org
https://lists.gnupg.org/pipermail/gnupg-announce/2025q1/000491.html
lists.gnupg.org
and 6 more references View all →

Timeline

Published
Mar 19, 2025
Last Updated
Oct 16, 2025

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