[UPDATE] [high] Linux Kernel: Vulnerability allows privilege escalation

highCVE-2026-43494

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

CSIRTS triage

vendor: Linux Kernel product: Linux Kernel Privilege escalation

What: A local attacker can exploit a vulnerability in the Linux Kernel to escalate their privileges.
Who is affected: Local deployments of the Linux Kernel are affected.
Urgency: Remediation is urgent due to the high severity of privilege escalation.
Action: Update the Linux Kernel to the latest version to fix this vulnerability.

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

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: high
Published: 2026-07-10
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1633

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-434940.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 19% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-43494	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

unknownexploitedUSN-8528-1: Linux kernel (Xilinx ZynqMP) vulnerabilitiesubuntu
unknownMultiple vulnerabilities in the Ubuntu Linux kernel (June 26, 2026)cert-fr-avis
criticalexploitedImpact of Linux Kernel vulnerabilities on B&R productscisa

Recent advisories for Linux Kernel

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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