CVE-2026-53138
Multiple vulnerabilities have been discovered in Debian LTS Linux kernel. They allow an attacker to cause privilege escalation, breach of data confidentiality and denial of service.
CSIRTS triage
- What
- Multiple LTS kernel vulnerabilities allow privilege escalation, data confidentiality breaches, and denial of service.
- Who is affected
- Systems running affected Debian LTS Linux kernel versions, including long-term support deployments.
- Urgency
- High; affects stable/LTS systems relied upon for production stability.
- Action
- Apply Debian LTS kernel security updates; coordinate with operational windows for systems dependent on stability.
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 2% of all EPSS-scored CVEs.
Advisory coverage (7)
- unknownMultiple vulnerabilities in Debian LTS Linux kernel (August 07, 2026)cert-fr-avis · 2026-08-07
- unknownDebian Linux Kernel Multiple Vulnerabilitieshkcert · 2026-08-06
- 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 SUSE Linux kernel (July 10, 2026)cert-fr-avis · 2026-07-10
- unknownMultiple vulnerabilities in Microsoft Azure Linux (July 09, 2026)cert-fr-avis · 2026-07-09
- mediumCVE-2026-53138: drm/amd/display: Bound VBIOS record-chain walk loopsmsrc · 2026-06-09
External references
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[](https://www.csirts.com/cve/CVE-2026-53138)