[UPDATE] [high] Linux Kernel: Multiple vulnerabilities allow Denial of Service

highCVE-2024-58087 CVE-2024-58088 CVE-2024-58089 CVE-2025-21844 CVE-2025-21845 CVE-2025-21846

An attacker can exploit multiple vulnerabilities in the Linux Kernel to create a Denial of Service state and cause unspecified effects.

CSIRTS triage

vendor: Linux product: Linux Kernel Denial of serviceOther

What: Multiple vulnerabilities allow an attacker to create a denial of service state and cause unspecified effects.
Who is affected: Deployments of the Linux Kernel are affected.
Urgency: Remediation is urgent due to the high severity of the vulnerabilities.
Action: Update to the latest version of the Linux Kernel to mitigate these 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: 2026-08-25
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-2025-0545

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-2024-580870.49% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 40% of all EPSS-scored CVEs.
Low exploitation riskCVE-2024-580880.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all EPSS-scored CVEs.
Low exploitation riskCVE-2024-580890.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 13% of all EPSS-scored CVEs.
Low exploitation riskCVE-2025-218440.60% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 46% of all EPSS-scored CVEs.
Low exploitation riskCVE-2025-218450.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all EPSS-scored CVEs.
Low exploitation riskCVE-2025-218460.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all EPSS-scored CVEs.
Low exploitation riskCVE-2025-218470.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all EPSS-scored CVEs.
Low exploitation riskCVE-2025-218480.23% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 14% of all EPSS-scored CVEs.
Low exploitation riskCVE-2025-218490.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all EPSS-scored CVEs.
Low exploitation riskCVE-2025-218500.40% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 33% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2024-58087	coverage & exploitation status	NVD · CVE.org
CVE-2024-58088	coverage & exploitation status	NVD · CVE.org
CVE-2024-58089	coverage & exploitation status	NVD · CVE.org
CVE-2025-21844	coverage & exploitation status	NVD · CVE.org
CVE-2025-21845	coverage & exploitation status	NVD · CVE.org
CVE-2025-21846	coverage & exploitation status	NVD · CVE.org
CVE-2025-21847	coverage & exploitation status	NVD · CVE.org
CVE-2025-21848	coverage & exploitation status	NVD · CVE.org
CVE-2025-21849	coverage & exploitation status	NVD · CVE.org
CVE-2025-21850	coverage & exploitation status	NVD · CVE.org
CVE-2025-21851	coverage & exploitation status	NVD · CVE.org
CVE-2025-21852	coverage & exploitation status	NVD · CVE.org
CVE-2025-21853	coverage & exploitation status	NVD · CVE.org
CVE-2025-21854	coverage & exploitation status	NVD · CVE.org
CVE-2025-21855	coverage & exploitation status	NVD · CVE.org
CVE-2025-21856	coverage & exploitation status	NVD · CVE.org
CVE-2025-21857	coverage & exploitation status	NVD · CVE.org
CVE-2025-21858	coverage & exploitation status	NVD · CVE.org
CVE-2025-21859	coverage & exploitation status	NVD · CVE.org
CVE-2025-21860	coverage & exploitation status	NVD · CVE.org
CVE-2025-21861	coverage & exploitation status	NVD · CVE.org
CVE-2025-21862	coverage & exploitation status	NVD · CVE.org
CVE-2025-21863	coverage & exploitation status	NVD · CVE.org
CVE-2025-21864	coverage & exploitation status	NVD · CVE.org
CVE-2025-21865	coverage & exploitation status	NVD · CVE.org
CVE-2025-21866	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

unknownUSN-8668-1: Linux kernel (GCP) vulnerabilitiesubuntu
mediumCVE-2024-58089: btrfs: fix double accounting race when btrfs_run_delalloc_range() failedmsrc
unknownUbuntu Linux Kernel Multiple Vulnerabilitieshkcert
unknownUSN-8620-4: Linux kernel (Intel IoTG) vulnerabilitiesubuntu
unknownUSN-8620-3: Linux kernel (Intel IoTG) vulnerabilitiesubuntu
unknownMultiple vulnerabilities in Ubuntu Linux kernel (July 31, 2026)cert-fr-avis
unknownUSN-8620-2: Linux kernel (Azure FIPS) vulnerabilitiesubuntu
unknownexploitedSiemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFPcisa
highUSN-8620-1: Linux kernel vulnerabilitiesubuntu
highUSN-8610-1: Linux kernel (Azure CVM) vulnerabilitiesubuntu
highUSN-8575-3: Linux kernel vulnerabilitiesubuntu
highUSN-8576-2: Linux kernel (NVIDIA Tegra) vulnerabilitiesubuntu