Medium severity · published Feb 9, 2026
CVE-2025-14831
Gnutls: gnutls: denial of service via excessive resource consumption during certificate verification
5.3
CVSS
0.7%
EPSS
No
On KEV
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).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CM
Cert Manager support for Red Hat OpenShift release 1.18 · Red Hat
All versions, or not specified · source: vendor
RB
RHEL-8 based Middleware Containers · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat AI Inference Server 3.2 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat AI Inference Server 3.3 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Ceph Storage 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Discovery 2 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 10 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 10.0 Extended Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 6 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 7 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support · Red Hat
All versions, or not specified · source: vendor
Affected product
CM
Cert Manager support for Red Hat OpenShift release 1.18
Red Hat
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-14831
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-14831
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:13812
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:16008
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:16009
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:16174
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:25096
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:30849
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