[UPDATE] [medium] Linux Kernel: Vulnerability Allows Unspecified Attack

CSIRTS triage

What

A local attacker can exploit multiple vulnerabilities in the Linux Kernel to carry out unspecified attacks, potentially including denial-of-service attacks, memory corruption, or information disclosure.

Who is affected

Local users of the Linux Kernel.

Urgency

Remediation is medium urgency as the vulnerabilities could lead to serious impacts.

Action

Apply the latest security patches for the Linux Kernel.

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

Details

Source

CERT-Bund (BSI) Security Advisories (DE · national-cert · site)

Severity

high

Published

2026-08-25

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-2026-1656

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-2026-434950.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 18% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-434960.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-434970.11% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-434980.11% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-434990.77% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 53% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-435010.63% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 47% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-435020.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.

Referenced CVEs

Same CVEs, other sources

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

• unknownUSN-8666-2: Linux kernel (Azure) vulnerabilitiesubuntu
• lowUSN-8661-2: Linux kernel (Low Latency) vulnerabilitiesubuntu
• unknownUSN-8669-1: Linux kernel (NVIDIA) vulnerabilitiesubuntu
• unknownUSN-8668-1: Linux kernel (GCP) vulnerabilitiesubuntu
• unknownUSN-8667-1: Linux kernel (KVM) vulnerabilitiesubuntu
• unknownUSN-8662-2: Linux kernel (FIPS) vulnerabilitiesubuntu
• unknownUSN-8666-1: Linux kernel vulnerabilitiesubuntu
• unknownUSN-8665-1: Linux kernel (Raspberry Pi) vulnerabilitiesubuntu
• unknownUSN-8664-1: Linux kernel (NVIDIA BaseOS) vulnerabilitiesubuntu
• unknownUSN-8663-1: Linux kernel (NVIDIA) vulnerabilitiesubuntu
• unknownUSN-8662-1: Linux kernel vulnerabilitiesubuntu
• unknownUSN-8661-1: Linux kernel vulnerabilitiesubuntu

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