CVE-2025-30258
GnuPG Certificate Verification Denial of Service
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."
INFO
Published Date :
March 19, 2025, 8:15 p.m.
Last Modified :
March 19, 2025, 8:15 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
1.4
Exploitability Score :
1.0
Public PoC/Exploit Available at Github
CVE-2025-30258 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-30258.
| URL | Resource |
|---|---|
| https://dev.gnupg.org/T7527 | |
| https://dev.gnupg.org/rG48978ccb4e20866472ef18436a32744350a65158 | |
| https://lists.gnupg.org/pipermail/gnupg-announce/2025q1/000491.html |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-30258 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-30258 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Mar. 19, 2025
Action Type Old Value New Value Added 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." Added CVSS V3.1 AV:L/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:L Added CWE CWE-754 Added Reference https://dev.gnupg.org/rG48978ccb4e20866472ef18436a32744350a65158 Added Reference https://dev.gnupg.org/T7527 Added Reference https://lists.gnupg.org/pipermail/gnupg-announce/2025q1/000491.html
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-30258 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-30258
weaknesses.