CVE-2026-53359
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2026-53359 is indexed in GitHub PoC. Expect opportunistic scanning and exploitation attempts — prioritize remediation even though it is not (yet) in the CISA KEV catalog.
Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. https://security-tracker.debian.org/tracker/DSA-6381-1
CSIRTS triage
- What
- Several vulnerabilities may lead to privilege escalation, denial of service, or information leaks.
- Who is affected
- Deployments of the Linux kernel.
- Urgency
- Remediation is urgent due to the potential for privilege escalation and denial of service.
- Action
- Apply the latest security update for the Linux kernel.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all EPSS-scored CVEs.
Exploit availability
Public exploit or proof-of-concept code for CVE-2026-53359 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.
- GitHub PoCPublic proof-of-concept repositories on GitHub reference this CVE.look it up ↗
Advisory coverage (5)
- medium[NEW] [medium] Linux Kernel: Multiple vulnerabilitiescert-bund · 2026-07-10
- unknownMultiple vulnerabilities in Red Hat Linux kernel (July 10, 2026)cert-fr-avis · 2026-07-10
- unknownDSA-6381-1 linux - security updatedebian · 2026-07-05
- unknownCVE-2026-53359: In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix shadow pagin…nvd · 2026-07-04
- highCVE-2026-53359: KVM: x86: Fix shadow paging use-after-free due to unexpected rolemsrc · 2026-07-02
External references
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[](https://www.csirts.com/cve/CVE-2026-53359)