[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow Denial of Service
A local attacker can exploit multiple vulnerabilities in Linux Kernel to conduct a Denial of Service attack or achieve other unspecified impacts.
CSIRTS triage
- What
- Multiple vulnerabilities allow a local attacker to conduct a Denial of Service attack or achieve other unspecified impacts.
- Who is affected
- Local attackers exploiting vulnerabilities in the Linux Kernel.
- Urgency
- Remediation is medium urgency due to the potential for Denial of Service attacks.
- Action
- Apply the latest patches for the Linux Kernel.
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-2026-0680
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-2026-232390.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all scored CVEs.
- Low exploitation riskCVE-2026-232400.49% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-23239 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-23240 | coverage & exploitation status | NVD · CVE.org |
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
More from CERT-Bund (BSI) Security Advisories
- medium[NEW] [medium] DENX U-Boot: Multiple vulnerabilities allow execution of arbitrary code and DoS2026-07-10
- medium[NEW] [medium] Samsung Android: Multiple vulnerabilities2026-07-10
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-10
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow unspecified attack2026-07-10
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-10