CVE-2025-14831
Denial of Service in GnuTLS via Malicious Certificate Parsing
Publication date: 2026-02-09
Last updated on: 2026-05-05
Assigner: Red Hat, Inc.
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| gnutls | gnutls | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-407 | An algorithm in a product has an inefficient worst-case computational complexity that may be detrimental to system performance and can be triggered by an attacker, typically using crafted manipulations that ensure that the worst case is being reached. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a flaw in GnuTLS that allows an attacker to cause a denial of service (DoS) by making the system consume excessive CPU and memory resources.
The attack is carried out by using specially crafted malicious certificates that contain a large number of name constraints and subject alternative names (SANs).
How can this vulnerability impact me? :
This vulnerability can impact you by causing a denial of service condition on systems using GnuTLS.
Specifically, the system may experience excessive CPU and memory consumption, which can degrade performance or cause the system to become unresponsive.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know