Multiple vulnerabilities in SUSE Linux kernel (August 21, 2026)

unknownpublic exploitCVE-2026-31623 CVE-2026-31483 CVE-2026-43135 CVE-2026-53192 CVE-2026-53230 CVE-2026-53398

Multiple vulnerabilities have been discovered in SUSE Linux kernel. Some of them allow an attacker to cause privilege escalation, breach of data confidentiality and breach of data integrity.

CSIRTS triage

vendor: SUSE product: Linux kernel Privilege escalation Information disclosure

What: Multiple kernel vulnerabilities enable privilege escalation and breach of data confidentiality and integrity.
Who is affected: SUSE Linux kernel users running affected versions.
Urgency: Unknown severity but privilege escalation impact is critical; apply updates promptly.
Action: Install the latest SUSE Linux kernel security update (August 21, 2026).

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-FR Avis de sécurité (FR · national-cert · site)
Severity: unknown
Published: 2026-08-21
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1064/

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-316230.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-314830.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-431350.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-531920.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-532300.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-533980.51% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 42% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-431130.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 16% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-530380.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-315220.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-533810.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-31623	coverage & exploitation status	NVD · CVE.org
CVE-2026-31483	coverage & exploitation status	NVD · CVE.org
CVE-2026-43135	coverage & exploitation status	NVD · CVE.org
CVE-2026-53192	coverage & exploitation status	NVD · CVE.org
CVE-2026-53230	coverage & exploitation status	NVD · CVE.org
CVE-2026-53398	coverage & exploitation status	NVD · CVE.org
CVE-2026-43113	coverage & exploitation status	NVD · CVE.org
CVE-2026-53038	coverage & exploitation status	NVD · CVE.org
CVE-2026-31522	coverage & exploitation status	NVD · CVE.org
CVE-2026-53381	coverage & exploitation status	NVD · CVE.org
CVE-2026-53132	coverage & exploitation status	NVD · CVE.org
CVE-2026-45905	coverage & exploitation status	NVD · CVE.org
CVE-2026-31770	coverage & exploitation status	NVD · CVE.org
CVE-2026-46211	coverage & exploitation status	NVD · CVE.org
CVE-2026-63957	coverage & exploitation status	NVD · CVE.org
CVE-2026-64561	coverage & exploitation status	NVD · CVE.org
CVE-2026-52934	coverage & exploitation status	NVD · CVE.org
CVE-2026-46184	coverage & exploitation status	NVD · CVE.org
CVE-2026-31582	coverage & exploitation status	NVD · CVE.org
CVE-2026-31619	coverage & exploitation status	NVD · CVE.org
CVE-2026-43413	coverage & exploitation status	NVD · CVE.org
CVE-2026-31618	coverage & exploitation status	NVD · CVE.org
CVE-2026-63854	coverage & exploitation status	NVD · CVE.org
CVE-2026-31756	coverage & exploitation status	NVD · CVE.org
CVE-2026-31467	coverage & exploitation status	NVD · CVE.org
CVE-2026-53350	coverage & exploitation status	NVD · CVE.org
CVE-2026-43270	coverage & exploitation status	NVD · CVE.org
CVE-2026-63974	coverage & exploitation status	NVD · CVE.org
CVE-2026-53214	coverage & exploitation status	NVD · CVE.org
CVE-2026-52925	coverage & exploitation status	NVD · CVE.org
CVE-2026-46307	coverage & exploitation status	NVD · CVE.org
CVE-2026-46130	coverage & exploitation status	NVD · CVE.org
CVE-2026-63943	coverage & exploitation status	NVD · CVE.org
CVE-2026-53210	coverage & exploitation status	NVD · CVE.org
CVE-2026-45845	coverage & exploitation status	NVD · CVE.org
CVE-2026-63843	coverage & exploitation status	NVD · CVE.org
CVE-2026-53374	coverage & exploitation status	NVD · CVE.org
CVE-2026-31485	coverage & exploitation status	NVD · CVE.org
CVE-2026-43314	coverage & exploitation status	NVD · CVE.org
CVE-2026-63923	coverage & exploitation status	NVD · CVE.org
CVE-2026-53002	coverage & exploitation status	NVD · CVE.org
CVE-2026-46255	coverage & exploitation status	NVD · CVE.org
CVE-2026-31578	coverage & exploitation status	NVD · CVE.org
CVE-2026-53202	coverage & exploitation status	NVD · CVE.org
CVE-2026-46082	coverage & exploitation status	NVD · CVE.org
CVE-2026-43251	coverage & exploitation status	NVD · CVE.org
CVE-2026-63882	coverage & exploitation status	NVD · CVE.org
CVE-2026-31754	coverage & exploitation status	NVD · CVE.org

+12 more CVEs referenced in this advisory.

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

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Recent advisories for SUSE Linux kernel

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

unknownexploitedMultiple vulnerabilities in SUSE Linux kernel (August 14, 2026)cert-fr-avis · 2026-08-14
unknownMultiple vulnerabilities in SUSE Linux kernel (August 07, 2026)cert-fr-avis · 2026-08-07
unknownSUSE Linux Kernel Multiple Vulnerabilitieshkcert · 2026-08-04
unknownMultiple vulnerabilities in SUSE Linux kernel (July 31, 2026)cert-fr-avis · 2026-07-31
unknownMultiple vulnerabilities in SUSE Linux kernel (July 24, 2026)cert-fr-avis · 2026-07-24
unknownMultiple vulnerabilities in the SUSE Linux kernel (July 17, 2026)cert-fr-avis · 2026-07-17