Multiple vulnerabilities in Red Hat Linux kernel (August 07, 2026)
Multiple vulnerabilities have been discovered in Red Hat Linux kernel. Some of them allow an attacker to cause arbitrary code execution, privilege escalation and remote denial of service.
CSIRTS triage
- What
- Multiple kernel vulnerabilities enable arbitrary code execution, privilege escalation, and remote denial of service.
- Who is affected
- Systems running affected Red Hat Linux kernel versions.
- Urgency
- Critical; remote code execution via kernel vulnerabilities is highest priority.
- Action
- Apply Red Hat kernel security updates immediately; prioritize systems exposed to untrusted networks.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0983/
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-2026-645310.13% 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-2026-638070.13% 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-2026-231990.09% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2025-400260.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-317870.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-463030.28% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 20% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-529930.37% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 30% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-461130.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-316920.12% 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-2026-434500.13% 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
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilitiescert-bund
- medium[NEW] [medium] Linux Kernel: Multiple vulnerabilitiescert-bund
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund
- high[UPDATE] [high] AMD ARM and EPYC processors: Multiple vulnerabilitiescert-bund
- high[UPDATE] [high] AMD Processor: Multiple vulnerabilitiescert-bund
- medium[UPDATE] [medium] Linux Kernel: Multiple Vulnerabilitiescert-bund
- medium[UPDATE] [medium] Linux Kernel: Multiple Vulnerabilitiescert-bund
- unknownMultiple vulnerabilities in IBM products (August 07, 2026)cert-fr-avis
- unknownMultiple vulnerabilities in Debian Linux kernel (August 07, 2026)cert-fr-avis
- unknownMultiple vulnerabilities in SUSE Linux kernel (August 07, 2026)cert-fr-avis
- unknownMultiple vulnerabilities in Debian LTS Linux kernel (August 07, 2026)cert-fr-avis
Recent advisories for Red Hat Linux
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[NEW] [medium] Red Hat Enterprise Linux (gpsd): Vulnerability enables code executioncert-bund · 2026-08-07
- medium[NEW] [medium] Red Hat Enterprise Linux AI (libaom): Multiple vulnerabilitiescert-bund · 2026-08-07
- high[UPDATE] [high] Red Hat Enterprise Linux AI: Vulnerability enables code executioncert-bund · 2026-08-07
- high[NEW] [high] Red Hat Enterprise Linux (sssd, glib, c-ares): Multiple vulnerabilitiescert-bund · 2026-08-07
- medium[UPDATE] [medium] Red Hat Enterprise Linux (libyang): Vulnerability allows Denial of Servicecert-bund · 2026-08-07
- high[UPDATE] [high] Red Hat Enterprise Linux (urllib3): Multiple vulnerabilities allow denial of servicecert-bund · 2026-08-07
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