[UPDATE] [high] Linux Kernel: Multiple vulnerabilities
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
A local attacker can exploit multiple vulnerabilities in the Linux Kernel to escalate privileges, trigger a Denial of Service condition and carry out multiple unspecified attacks.
CSIRTS triage
- What
- Multiple vulnerabilities enable local privilege escalation, denial of service, and unspecified attacks.
- Who is affected
- Local users on systems running vulnerable Linux kernel versions.
- Urgency
- High; local privilege escalation allows unprivileged users to gain administrative control.
- Action
- Apply latest stable kernel patches from your distribution; monitor for kernel updates and apply promptly.
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-2022-0156
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.
- Exploitation confirmedCVE-2022-0995Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 95% of all EPSS-scored CVEs.
- Moderate exploitation riskCVE-2022-10111.2% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 66% of all EPSS-scored CVEs.
- Moderate exploitation riskCVE-2021-458681.3% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 70% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2022-0886 | coverage & exploitation status | NVD · CVE.org |
| CVE-2022-0995 | coverage & exploitation status | NVD · CVE.org |
| CVE-2022-1011 | coverage & exploitation status | NVD · CVE.org |
| CVE-2021-45868 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- highexploitedCISA Adds Six Known Exploited Vulnerabilities to Catalogcisa
- criticalexploitedCVE-2022-0995: Linux Kernel Out-of-Bounds Write Vulnerabilitycisa-kev
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[UPDATE] [mittel] Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Servicecert-bund · 2026-09-14
- high[UPDATE] [hoch] Linux Kernel: Mehrere Schwachstellencert-bund · 2026-09-14
- high[UPDATE] [hoch] Linux Kernel: Mehrere Schwachstellencert-bund · 2026-09-14
- medium[UPDATE] [mittel] Linux Kernel: Mehrere Schwachstellencert-bund · 2026-09-14
- medium[UPDATE] [mittel] Linux Kernel: Mehrere Schwachstellencert-bund · 2026-09-14
- high[UPDATE] [hoch] Linux Kernel: Mehrere Schwachstellencert-bund · 2026-09-14
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