[NEW] [medium] Linux Kernel: Multiple vulnerabilities allow Denial of Service
A local attacker can exploit multiple vulnerabilities in the Linux Kernel to conduct a Denial of Service attack.
CSIRTS triage
- What
- Multiple vulnerabilities in the Linux Kernel can be exploited to conduct a denial of service attack.
- Who is affected
- Local users of the Linux Kernel.
- Urgency
- Remediation is medium urgency as the vulnerabilities are unpatched but could lead to service disruption.
- Action
- Update to the latest version of the Linux Kernel to address these vulnerabilities.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2313
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-2026-533640.11% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all scored CVEs.
- Low exploitation riskCVE-2026-533650.11% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-53364 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-53365 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownDSA-6405-1 linux - security updatedebian
- highUSN-8618-1: Linux kernel vulnerabilitiesubuntu
- highUSN-8603-1: Linux kernel (Azure) vulnerabilitiesubuntu
- highUSN-8593-1: Linux kernel vulnerabilitiesubuntu
- highUSN-8569-1: Linux kernel (HWE) vulnerabilitiesubuntu
- highUSN-8568-1: Linux kernel (OEM) vulnerabilitiesubuntu
- highUSN-8566-1: Linux kernel vulnerabilitiesubuntu
- unknownCVE-2026-53365: In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix zerocopy…nvd
- unknownCVE-2026-53364: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: Fix m…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.
- highUSN-8620-4: Linux kernel (Intel IoTG) vulnerabilitiesubuntu · 2026-07-31
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of servicecert-bund · 2026-07-31
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow Denial of Servicecert-bund · 2026-07-31
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of servicecert-bund · 2026-07-31
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilitiescert-bund · 2026-07-31
- medium[UPDATE] [medium] Linux Kernel (ntfs3): Vulnerability allows information disclosurecert-bund · 2026-07-31
More from CERT-Bund (BSI) Security Advisories
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-31
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow Denial of Service2026-07-31
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-31
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities2026-07-31
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow unspecified attack2026-07-31