Multiple vulnerabilities in Red Hat Linux kernel (August 14, 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 vulnerabilities in Red Hat Linux kernel enable arbitrary code execution, privilege escalation, and remote denial of service.
- Who is affected
- Red Hat Enterprise Linux systems running affected kernel versions are vulnerable.
- Urgency
- Critical; RCE and privilege escalation vulnerabilities pose immediate compromise risk.
- Action
- Apply Red Hat kernel security errata addressing all listed CVEs.
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-1028/
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-2024-531430.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 12% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-532020.15% 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-2026-315300.13% 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-2026-645310.13% 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-2026-317870.18% 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-2026-643680.42% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 35% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-530090.13% 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-2025-102630.57% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 45% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-643000.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-530590.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.
Referenced CVEs
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilitiescert-bund
- medium[UPDATE] [medium] Linux Kernel: Multiple Vulnerabilitiescert-bund
- medium[UPDATE] [medium] Linux Kernel: Multiple Vulnerabilitiescert-bund
- unknownMultiple vulnerabilities in Debian LTS Linux kernel (August 14, 2026)cert-fr-avis
- medium[UPDATE] [medium] Linux Kernel: Multiple Vulnerabilitiescert-bund
- medium[UPDATE] [medium] Linux Kernel: Vulnerability enables denial of servicecert-bund
- high[UPDATE] [high] AMD Processor: Multiple vulnerabilitiescert-bund
- high[UPDATE] [high] Xen and Citrix Systems XenServer: Multiple vulnerabilitiescert-bund
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund
- medium[UPDATE] [medium] Xen: Multiple vulnerabilitiescert-bund
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 (yelp, dracut): Multiple vulnerabilitiescert-bund · 2026-08-14
- high[UPDATE] [high] Red Hat Enterprise Linux (Flatpak): Multiple vulnerabilitiescert-bund · 2026-08-14
- high[NEW] [high] Red Hat Enterprise Linux (nodejs:24): Multiple vulnerabilitiescert-bund · 2026-08-14
- medium[NEW] [medium] Red Hat Enterprise Linux (python-idna): Vulnerability Enables Denial of Servicecert-bund · 2026-08-14
- medium[NEW] [medium] Red Hat Enterprise Linux (brace-expansion): Vulnerability allows denial of servicecert-bund · 2026-08-14
- medium[UPDATE] [medium] Red Hat Enterprise Linux (p11-kit): Vulnerability allows denial of servicecert-bund · 2026-08-14
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