[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 allow local attackers to conduct denial of service attacks.
- Who is affected
- Local deployments of the Linux Kernel.
- Urgency
- Remediation is medium urgency due to the potential for denial of service.
- Action
- Apply patches as they become available.
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-2026-2190
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-2026-533570.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all scored CVEs.
- Low exploitation riskCVE-2026-533580.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-53357 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-53358 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownCVE-2026-53358: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: use chan…nvd
- unknownCVE-2026-53357: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix UAF in l2ca…nvd
- mediumCVE-2026-53357: Bluetooth: fix UAF in l2cap_sock_cleanup_listen() vs l2cap_conn_del()msrc
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.
- unknownCVE-2026-53363: In the Linux kernel, the following vulnerability has been resolved: xfrm: iptfs: preserve shar…nvd · 2026-07-10
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of servicecert-bund · 2026-07-10
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of servicecert-bund · 2026-07-10
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow unspecified attackcert-bund · 2026-07-10
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund · 2026-07-10
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund · 2026-07-10
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- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-10