CVE-2026-31623
Multiple vulnerabilities have been discovered in the Ubuntu Linux kernel. Some of them allow an attacker to cause privilege escalation, data confidentiality breaches, and security policy bypass.
CSIRTS triage
- What
- Multiple vulnerabilities in the Ubuntu Linux kernel could allow privilege escalation and data confidentiality breaches.
- Who is affected
- Users of Ubuntu systems running the affected Linux kernel.
- Urgency
- Remediation is urgent due to the potential for privilege escalation and data breaches.
- Action
- Apply the latest security updates for the Ubuntu Linux kernel.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Advisory coverage (3)
- unknownMultiple vulnerabilities in Ubuntu Linux kernel (July 10, 2026)cert-fr-avis · 2026-07-10
- unknownMultiple vulnerabilities in Debian LTS Linux kernel (July 10, 2026)cert-fr-avis · 2026-07-10
- unknownMultiple vulnerabilities in Ubuntu Linux kernel (July 3, 2026)cert-fr-avis · 2026-07-03
External references
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