CVE-2026-53163
Multiple vulnerabilities have been discovered in Debian LTS Linux kernel. Some of them allow an attacker to cause privilege escalation, data confidentiality breach and denial of service.
CSIRTS triage
- What
- Multiple vulnerabilities in the Linux kernel allow privilege escalation, data confidentiality breach, and denial of service.
- Who is affected
- Systems running Debian LTS Linux kernel.
- Urgency
- High; multiple attack vectors including privilege escalation require prompt patching.
- Action
- Apply Debian security updates for the Linux kernel package.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
Advisory coverage (5)
- unknownMultiple vulnerabilities in Debian LTS Linux kernel (July 31, 2026)cert-fr-avis · 2026-07-31
- unknownMultiple vulnerabilities in Debian LTS Linux kernel (July 24, 2026)cert-fr-avis · 2026-07-24
- unknownMultiple vulnerabilities in Microsoft Azure Linux (July 09, 2026)cert-fr-avis · 2026-07-09
- unknownDSA-6381-1 linux - security updatedebian · 2026-07-05
- mediumCVE-2026-53163: locking/rtmutex: Skip remove_waiter() when waiter is not enqueuedmsrc · 2026-06-09
External references
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