CVE-2026-43503

highcovered by 20 sourcesfirst seen 2026-06-26

A local attacker can exploit a vulnerability in Linux Kernel to gain administrator rights.

CSIRTS triage

What: A local attacker can exploit a vulnerability to gain administrator rights.
Who is affected: Local deployments of the Linux Kernel.
Urgency: Remediation is high urgency as it allows for privilege escalation.
Action: Upgrade to the latest version of the Linux Kernel.

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

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Exploitation outlook

Low exploitation risk0.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all EPSS-scored CVEs.

Advisory coverage (20)

high[UPDATE] [high] Linux Kernel: Vulnerability allows gaining administrator rightscert-bund · 2026-08-19
unknownMultiple vulnerabilities in Ubuntu Linux kernel (August 14, 2026)cert-fr-avis · 2026-08-14
unknownUSN-8529-2: Linux kernel vulnerabilitiesubuntu · 2026-08-13
unknownUSN-8548-2: Linux kernel vulnerabilitiesubuntu · 2026-08-13
unknownUSN-8530-2: Linux kernel (HWE) vulnerabilitiesubuntu · 2026-08-13
unknownUSN-8635-1: Linux kernel (Azure) vulnerabilitiesubuntu · 2026-08-12
unknownUSN-8615-2: Linux kernel (Raspberry Pi) vulnerabilitiesubuntu · 2026-07-29
unknownUSN-8617-1: Linux kernel (KVM) vulnerabilitiesubuntu · 2026-07-28
unknownUSN-8616-1: Linux kernel (IBM) vulnerabilitiesubuntu · 2026-07-28
unknownUSN-8615-1: Linux kernel vulnerabilitiesubuntu · 2026-07-28
highUSN-8569-1: Linux kernel (HWE) vulnerabilitiesubuntu · 2026-07-20
unknownMultiple vulnerabilities in the Ubuntu Linux kernel (July 17, 2026)cert-fr-avis · 2026-07-17
unknownUSN-8548-1: Linux kernel vulnerabilitiesubuntu · 2026-07-15
unknownUSN-8530-1: Linux kernel (AWS) vulnerabilitiesubuntu · 2026-07-10
unknownUSN-8529-1: Linux kernel vulnerabilitiesubuntu · 2026-07-10
unknownexploitedUSN-8528-1: Linux kernel (Xilinx ZynqMP) vulnerabilitiesubuntu · 2026-07-10
unknownMultiple vulnerabilities in SUSE Linux kernel (July 3, 2026)cert-fr-avis · 2026-07-03
unknownRedHat Linux Kernel Multiple Vulnerabilitieshkcert · 2026-07-02
unknownMultiple vulnerabilities in the Ubuntu Linux kernel (June 26, 2026)cert-fr-avis · 2026-06-26
unknownMultiple vulnerabilities in the SUSE Linux kernel (June 26, 2026)cert-fr-avis · 2026-06-26

External references

NVD record for CVE-2026-43503

CVE.org record

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