[UPDATE] [high] Linux Kernel: Multiple vulnerabilities
An attacker can exploit multiple vulnerabilities in the Linux Kernel to conduct a Denial of Service attack, manipulate data, and perform other unspecified attacks.
CSIRTS triage
- What
- Multiple vulnerabilities allow denial of service attacks and other unspecified attacks.
- Who is affected
- Deployments of the Linux Kernel.
- Urgency
- Remediation is urgent due to the high severity of the vulnerabilities.
- Action
- Apply the latest patches to mitigate the vulnerabilities.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch Linux Kernel
Get an email when a new Linux Kernel advisory drops — max one per day, one-click unsubscribe.
Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-2298
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-2025-399660.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2025-399670.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2025-399680.14% 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-2025-399690.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2025-399700.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2025-399710.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2025-399720.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2025-399730.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2025-399740.17% 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-2025-399750.43% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 36% of all EPSS-scored CVEs.
Referenced CVEs
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- mediumCVE-2025-39990: bpf: Check the helper function is valid in get_helper_protomsrc
- unknownexploitedSiemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFPcisa
- unknownMultiple vulnerabilities in Red Hat Linux kernel (July 24, 2026)cert-fr-avis
- unknownMultiple vulnerabilities in Debian LTS Linux kernel (July 10, 2026)cert-fr-avis
- unknownDebian Linux Kernel Multiple Vulnerabilitieshkcert
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.
- unknownUSN-8659-4: Linux kernel (Oracle) vulnerabilityubuntu · 2026-08-26
- unknownUSN-8666-2: Linux kernel (Azure) vulnerabilitiesubuntu · 2026-08-25
- unknownUSN-8630-5: Linux kernel (Raspberry Pi) vulnerabilitiesubuntu · 2026-08-25
- unknownUSN-8658-3: Linux kernel vulnerabilitiesubuntu · 2026-08-25
- unknownUSN-8643-4: Linux kernel vulnerabilitiesubuntu · 2026-08-25
- unknownUSN-8659-3: Linux kernel (Azure) vulnerabilityubuntu · 2026-08-25
More from CERT-Bund (BSI) Security Advisories
- high[NEW] [high] Linux Kernel: Multiple vulnerabilities2026-08-25
- medium[NEW] [medium] libTIFF: Multiple Vulnerabilities2026-08-25
- high[NEW] [high] Contao: Multiple Vulnerabilities2026-08-25
- medium[NEW] [medium] Django: Multiple Vulnerabilities2026-08-25
- high[NEW] [high] Red Hat Enterprise Linux (Apicurio Registry): Multiple Vulnerabilities2026-08-25