[UPDATE] [hoch] Linux Kernel: Mehrere Schwachstellen

highCVE-2026-45837 CVE-2026-45838 CVE-2026-45839 CVE-2026-45840 CVE-2026-45841 CVE-2026-45842

Ein entfernter Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um einen Denial of Service Zustand oder andere Auswirkungen herbeizuführen.

CSIRTS triage

vendor: Linux product: Linux Kernel Denial of serviceOther

What: Multiple vulnerabilities can cause denial of service or other effects.
Who is affected: A remote attacker can exploit these vulnerabilities.
Urgency: Remediation is urgent due to the high severity of the vulnerabilities.
Action: Update the Linux Kernel to the latest version to mitigate the vulnerabilities.

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: 2026-09-07
Exploitation: Not in CISA KEV at last sync

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1691

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-2026-458370.12% 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-2026-458380.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-458390.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-458400.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-458410.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-458420.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-458430.36% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 29% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-458440.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-458450.12% 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-2026-458460.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-45837	coverage & exploitation status	NVD · CVE.org
CVE-2026-45838	coverage & exploitation status	NVD · CVE.org
CVE-2026-45839	coverage & exploitation status	NVD · CVE.org
CVE-2026-45840	coverage & exploitation status	NVD · CVE.org
CVE-2026-45841	coverage & exploitation status	NVD · CVE.org
CVE-2026-45842	coverage & exploitation status	NVD · CVE.org
CVE-2026-45843	coverage & exploitation status	NVD · CVE.org
CVE-2026-45844	coverage & exploitation status	NVD · CVE.org
CVE-2026-45845	coverage & exploitation status	NVD · CVE.org
CVE-2026-45846	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

unknownexploitedUSN-8728-1: Linux kernel (GCP) vulnerabilitiesubuntu
unknownMultiples vulnérabilités dans le noyau Linux d'Ubuntu (28 août 2026)cert-fr-avis
unknownUSN-8668-1: Linux kernel (GCP) vulnerabilitiesubuntu
unknownMultiple vulnerabilities in SUSE Linux kernel (August 21, 2026)cert-fr-avis
unknownMultiple vulnerabilities in Ubuntu Linux kernel (August 21, 2026)cert-fr-avis
unknownUSN-8665-1: Linux kernel (Raspberry Pi) vulnerabilitiesubuntu
unknownUSN-8664-1: Linux kernel (NVIDIA BaseOS) vulnerabilitiesubuntu
unknownUSN-8663-1: Linux kernel (NVIDIA) vulnerabilitiesubuntu
unknownMultiple vulnerabilities in Ubuntu Linux kernel (August 07, 2026)cert-fr-avis
unknownUSN-8620-4: Linux kernel (Intel IoTG) vulnerabilitiesubuntu
unknownUSN-8620-3: Linux kernel (Intel IoTG) vulnerabilitiesubuntu
unknownUSN-8620-2: Linux kernel (Azure FIPS) vulnerabilitiesubuntu

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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