CVE-2026-46243

CSIRTS triage

What

A local attacker can exploit a vulnerability in the Linux Kernel to elevate their privileges.

Who is affected

Local users of the Linux Kernel.

Urgency

Remediation is medium urgency as exploitation is possible but not currently observed.

Action

Apply the latest security patches for the Linux Kernel.

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

Exploitation outlook

• Low exploitation risk0.38% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 30% of all EPSS-scored CVEs.

Advisory coverage (38)

• medium[UPDATE] [medium] Linux Kernel: Vulnerability allows privilege escalationcert-bund · 2026-08-25
• 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
• highUSN-8619-1: Linux kernel (HWE) vulnerabilitiesubuntu · 2026-07-28
• 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
• unknownUSN-8547-2: Linux kernel (Azure FIPS) vulnerabilitiesubuntu · 2026-07-28
• highUSN-8609-1: Linux kernel (Azure CVM) vulnerabilitiesubuntu · 2026-07-24
• highUSN-8607-1: Linux kernel (Azure CVM) vulnerabilitiesubuntu · 2026-07-24
• highUSN-8606-1: Linux kernel (Azure) vulnerabilitiesubuntu · 2026-07-24
• unknownUSN-8605-1: Linux kernel (Azure CVM) vulnerabilitiesubuntu · 2026-07-24
• unknownUSN-8604-1: Linux kernel (Azure) vulnerabilitiesubuntu · 2026-07-24
• highUSN-8603-1: Linux kernel (Azure) vulnerabilitiesubuntu · 2026-07-24
• unknownMultiple vulnerabilities in Red Hat Linux kernel (July 24, 2026)cert-fr-avis · 2026-07-24
• highUSN-8569-1: Linux kernel (HWE) vulnerabilitiesubuntu · 2026-07-20
• unknownUSN-8490-2: Linux kernel (Real-time) vulnerabilitiesubuntu · 2026-07-17
• unknownUSN-8490-1: Linux kernel vulnerabilitiesubuntu · 2026-07-17
• unknownMultiple vulnerabilities in the SUSE Linux kernel (July 17, 2026)cert-fr-avis · 2026-07-17
• 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-8547-1: Linux kernel vulnerabilitiesubuntu · 2026-07-15
• unknownUSN-8546-1: Linux kernel (Raspberry Pi) vulnerabilitiesubuntu · 2026-07-15
• unknownUSN-8545-1: Linux kernel (HWE) 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
• unknownUSN-8527-1: Linux kernel (Raspberry Pi) vulnerabilitiesubuntu · 2026-07-10
• unknownUSN-8492-5: Linux kernel (FIPS) vulnerabilitiesubuntu · 2026-07-10
• unknownMultiple vulnerabilities in Red Hat Linux kernel (July 10, 2026)cert-fr-avis · 2026-07-10
• unknownUSN-8492-4: Linux kernel (Raspberry Pi) vulnerabilitiesubuntu · 2026-07-09
• unknownMultiple vulnerabilities in Red Hat Linux kernel (July 3, 2026)cert-fr-avis · 2026-07-03
• unknownRedHat Linux Kernel Multiple Vulnerabilitieshkcert · 2026-07-02
• highCVE-2026-46243: smb: client: reject userspace cifs.spnego descriptionsmsrc · 2026-06-09

External references

NVD record for CVE-2026-46243

CVE.org record

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