[UPDATE] [high] Linux Kernel: Multiple Vulnerabilities
A remote attacker can exploit multiple vulnerabilities in the Linux Kernel to cause a denial of service condition or other effects.
CSIRTS triage
- What
- Multiple vulnerabilities can cause denial of service or other effects.
- Who is affected
- A remote attacker can exploit these vulnerabilities.
- Urgency
- Remediation is urgent due to the high severity of the vulnerabilities.
- Action
- Update the Linux Kernel to the latest version to mitigate the 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-2026-1691
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-2026-458370.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-458380.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-458390.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-458400.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-458410.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-458420.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-458430.36% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 29% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-458440.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-458450.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-458460.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-45837 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-45838 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-45839 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-45840 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-45841 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-45842 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-45843 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-45844 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-45845 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-45846 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownUSN-8668-1: Linux kernel (GCP) vulnerabilitiesubuntu
- unknownMultiple vulnerabilities in Ubuntu Linux kernel (August 21, 2026)cert-fr-avis
- unknownMultiple vulnerabilities in SUSE Linux kernel (August 21, 2026)cert-fr-avis
- unknownUSN-8665-1: Linux kernel (Raspberry Pi) vulnerabilitiesubuntu
- unknownUSN-8664-1: Linux kernel (NVIDIA BaseOS) vulnerabilitiesubuntu
- unknownUSN-8663-1: Linux kernel (NVIDIA) vulnerabilitiesubuntu
- unknownMultiple vulnerabilities in Ubuntu Linux kernel (August 07, 2026)cert-fr-avis
- unknownUSN-8620-4: Linux kernel (Intel IoTG) vulnerabilitiesubuntu
- unknownUSN-8620-3: Linux kernel (Intel IoTG) vulnerabilitiesubuntu
- unknownUSN-8620-2: Linux kernel (Azure FIPS) vulnerabilitiesubuntu
- highUSN-8620-1: Linux kernel vulnerabilitiesubuntu
- highUSN-8619-1: Linux kernel (HWE) vulnerabilitiesubuntu
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