CVE-2025-14831

Published Feb 9, 2026

Last updated 23 days ago

CVSS medium 5.3
Ubuntu

Overview

Description
A flaw was found in GnuTLS. This vulnerability allows a denial of service (DoS) by excessive CPU (Central Processing Unit) and memory consumption via specially crafted malicious certificates containing a large number of name constraints and subject alternative names (SANs).
Source
secalert@redhat.com
NVD status
Deferred

Risk scores

CVSS 3.1

Type
Secondary
Base score
5.3
Impact score
1.4
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Severity
MEDIUM

Weaknesses

secalert@redhat.com
CWE-407

Social media

Hype score
Not currently trending

  1. BREAKING: SUSE Linux Micro 6.2 releases gnutls update patching CVE-2025-14831 DoS and CVE-2025-9820 buffer overflow, admins urged to apply via YaST or zypper immediately. https://t.co/lcMx8nOZi7

    @threatcluster

    8 Apr 2026

    170 Impressions

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  2. #Mageia 2026-0045 addresses a high-severity GnuTLS flaw (CVE-2025-14831). This isn't just a patch; it's a compliance and operational necessity. Read more: 👉 https://t.co/BgZ0aVmCFY #Security https://t.co/ICq0mxgtJ2

    @Cezar_H_Linux

    21 Feb 2026

    60 Impressions

    0 Retweets

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  3. Heads up, #Debian community! 🐧 A significant DoS vulnerability (CVE-2025-14831) in the #GnuTLS library has been patched. Read more: 👉 https://t.co/99oEmHPzRW #Security https://t.co/s0NgAZrKGy

    @Cezar_H_Linux

    18 Feb 2026

    47 Impressions

    0 Retweets

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  4. GNUTLS-SA-2026-02-09-1、CVE-2026-1584 Severity High; invalid pointer access GNUTLS-SA-2026-02-09-2、CVE-2025-14831 Severity Medium; denial of service The GnuTLS Transport Layer Security Library https://t.co/KkxVAntDe6

    @autumn_good_35

    10 Feb 2026

    128 Impressions

    0 Retweets

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  5. GnuTLS 3.8.12 fixes 2 CVEs https://t.co/9rzV3GhTDn CVE-2026-1584: NULL pointer dereference in PSK binder verification (TLS 1.3 resumption attempt with an invalid PSK binder value in ClientHello could lead to DoS) CVE-2025-14831: Name constraint processing performance issue

    @oss_security

    10 Feb 2026

    663 Impressions

    2 Retweets

    5 Likes

    1 Bookmark

    1 Reply

    0 Quotes

  6. CVE-2025-14831 Denial of Service Vulnerability in GnuTLS via Malicious C... https://t.co/Uqf1i9lcLH Don't wait vulnerability scanning results: https://t.co/oh1APvMMnd

    @VulmonFeeds

    9 Feb 2026

    48 Impressions

    0 Retweets

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    1 Bookmark

    0 Replies

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  7. CVE-2025-14831 A flaw was found in GnuTLS. This vulnerability allows a denial of service (DoS) by excessive CPU (Central Processing Unit) and memory consumption via specially crafte… https://t.co/TayL7snrFO

    @CVEnew

    9 Feb 2026

    260 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

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References

Sources include official advisories and independent security research.