CVE-2025-14831VulnerabilityPublished 9 Feb 2026Updated 14 Oct 2026

CVE-2025-14831: Red Hat Enterprise Linux 10 · Inefficient Algorithmic Complexity

Affects Red Hat Enterprise Linux 10Source CVE Database V5

Not known to be exploited · CVSS 5.3 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

5.3Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.6% chance of exploitation in 30 days – higher than 51% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: Low

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 9 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
Red HatRed Hat Enterprise Linux 10	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 10.0 Extended Update Support	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 8	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Service	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Service	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutions	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutions	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 9	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 9.4 Extended Update Support	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 9.6 Extended Update Support	Affected–	Fixed in–
Red HatRHEL-8 based Middleware Containers	Affected–	Fixed in–
Red HatRHEL-8 based Middleware Containers	Affected–	Fixed in–
Red HatRHEL-8 based Middleware Containers	Affected–	Fixed in–
Red HatRHEL-8 based Middleware Containers	Affected–	Fixed in–
Red HatRHEL-8 based Middleware Containers	Affected–	Fixed in–
Red HatRHEL-8 based Middleware Containers	Affected–	Fixed in–
Red HatRHEL-8 based Middleware Containers	Affected–	Fixed in–
Red HatCert Manager support for Red Hat OpenShift release 1.18	Affected–	Fixed in–
Red HatCert Manager support for Red Hat OpenShift release 1.18	Affected–	Fixed in–
Red HatCert Manager support for Red Hat OpenShift release 1.18	Affected–	Fixed in–
Red HatCert Manager support for Red Hat OpenShift release 1.18	Affected–	Fixed in–
Red HatCert Manager support for Red Hat OpenShift release 1.18	Affected–	Fixed in–
Red HatRed Hat AI Inference Server 3.2	Affected–	Fixed in–
Red HatRed Hat AI Inference Server 3.2	Affected–	Fixed in–
Red HatRed Hat AI Inference Server 3.3	Affected–	Fixed in–
Red HatRed Hat AI Inference Server 3.3	Affected–	Fixed in–
Red HatRed Hat AI Inference Server 3.3	Affected–	Fixed in–
Red HatRed Hat AI Inference Server 3.3	Affected–	Fixed in–
Red HatRed Hat AI Inference Server 3.3	Affected–	Fixed in–
Red HatRed Hat AI Inference Server 3.3	Affected–	Fixed in–
Red HatRed Hat Ceph Storage 8	Affected–	Fixed in–
Red HatRed Hat Discovery 2	Affected–	Fixed in–
Red HatRed Hat Discovery 2	Affected–	Fixed in–
Red HatRed Hat Hardened Images	Affected–	Fixed in–
Red HatRed Hat Insights proxy 1.5	Affected–	Fixed in–
Red HatRed Hat Update Infrastructure 5	Affected–	Fixed in–
Red HatRed Hat Update Infrastructure 5	Affected–	Fixed in–
Red HatRed Hat Update Infrastructure 5	Affected–	Fixed in–
Red HatRed Hat Update Infrastructure 5	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 6	Affected–	Fixed in–
Red HatRed Hat Enterprise Linux 7	Affected–	Fixed in–
Red HatRed Hat OpenShift Container Platform 4	Affected–	Fixed in–

AI-suggested

Red Hat has released official security advisories with updated container images that include patches for CVE-2025-14831. Users of Red Hat Enterprise Linux 10 and related container images should upgrade to the updated images provided by Red Hat Container Registry as per the advisories (e.g., RHSA-2026:13812). Rebuilding dependent container images to incorporate these fixes is also recommended. Patch status is confirmed as fixed in these updated images. No additional mitigation actions are indicated by the vendor.

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).

Impact

The vulnerability causes denial of service by consuming excessive CPU and memory resources during certificate verification in GnuTLS. This can degrade or disrupt services relying on GnuTLS for TLS operations on affected Red Hat Enterprise Linux 10 systems. There is no impact on confidentiality or integrity reported. No known exploits in the wild have been documented.

Summary

This vulnerability in GnuTLS, used in Red Hat Enterprise Linux 10, involves inefficient algorithmic complexity that can be exploited by an attacker supplying malicious certificates with a large number of name constraints and SANs. This leads to excessive CPU and memory usage, resulting in a denial of service condition. The issue is documented under CVE-2025-14831 with a CVSS 3.1 base score of 5.3 (medium severity). Multiple Red Hat security advisories (e.g., RHSA-2026:13812 and others) provide patches and updated container images that include backported fixes for this vulnerability. The advisories recommend upgrading to these updated images to resolve the issue.

Assigned by (CNA): Red Hat, Inc. (opens in a new tab) · Vendor, Open Source · USA
Reserved: 17 Dec 2025
CVSS version: 3.1
Vendor Advisory Urls: [object Object], [object Object], [object Object], [object Object], [object Object], [object Object], [object Object], [object Object], [object Object], [object Object], [object Object], [object Object], [object Object], [object Object], [object Object], [object Object], [object Object]

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 2 Jul 2026, 22:16 UTC

Technical details

References

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