[NEU] [hoch] Linux Kernel: Mehrere Schwachstellen
Ein Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um vertrauliche Informationen offenzulegen, Daten zu manipulieren oder einen Denial-of-Service-Zustand zu verursachen.
Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2640
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-2026-645610.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all scored CVEs.
- Low exploitation riskCVE-2026-645620.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all scored CVEs.
- Low exploitation riskCVE-2026-645630.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all scored CVEs.
- Low exploitation riskCVE-2026-645640.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all scored CVEs.
- Low exploitation riskCVE-2026-645650.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-64561 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64562 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64563 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64564 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64565 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownCVE-2026-64565: In the Linux kernel, the following vulnerability has been resolved: Input: ims-pcu - fix heap-…nvd
- unknownCVE-2026-64564: In the Linux kernel, the following vulnerability has been resolved: sctp: don't free the ASCON…nvd
- unknownCVE-2026-64563: In the Linux kernel, the following vulnerability has been resolved: rhashtable: clear stale it…nvd
- unknownCVE-2026-64562: In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Hide shadow VMC…nvd
- unknownCVE-2026-64561: In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Check for invali…nvd
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.
- medium[NEU] [mittel] Linux Kernel: Mehrere Schwachstellencert-bund · 2026-08-05
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund · 2026-08-05
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund · 2026-08-05
- medium[NEW] [medium] Linux Kernel: Multiple vulnerabilitiescert-bund · 2026-08-05
- medium[NEW] [medium] Linux Kernel: Vulnerability allows privilege escalationcert-bund · 2026-08-05
- high[UPDATE] [high] Linux Kernel: Vulnerability allows privilege escalationcert-bund · 2026-08-05
More from CERT-Bund (BSI) Security Advisories
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- high[NEU] [hoch] Veeam ONE: Mehrere Schwachstellen2026-08-05
- medium[NEU] [mittel] Mozilla Firefox für Android: Schwachstelle ermöglicht Offenlegung von Informationen2026-08-05