Multiple vulnerabilities in Red Hat Linux kernel (July 3, 2026)
Multiple vulnerabilities have been discovered in the Red Hat Linux kernel. Some of them allow an attacker to cause remote arbitrary code execution, privilege escalation, and a remote denial of service.
CSIRTS triage
- What
- Multiple vulnerabilities allow an attacker to cause remote arbitrary code execution, privilege escalation, and a remote denial of service.
- Who is affected
- Deployments of the Red Hat Linux kernel are affected.
- Urgency
- Remediation is urgent due to the potential for exploitation and the severity of the vulnerabilities.
- Action
- Apply the latest security patches provided by Red Hat.
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-0832/
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-2026-431980.30% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 22% of all scored CVEs.
- Low exploitation riskCVE-2026-48780.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all scored CVEs.
- Low exploitation riskCVE-2026-458520.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all scored CVEs.
- Low exploitation riskCVE-2026-462270.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all scored CVEs.
- Exploitation likely imminentCVE-2026-43284EPSS puts this in the most-targeted tier (93.2% 30-day exploitation probability). Prioritize alongside KEV items. Riskier than 100% of all scored CVEs.
- Low exploitation riskCVE-2026-461730.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all scored CVEs.
- Exploitation likely imminentCVE-2026-31431EPSS puts this in the most-targeted tier (96.3% 30-day exploitation probability). Prioritize alongside KEV items. Riskier than 100% of all scored CVEs.
- Low exploitation riskCVE-2026-432790.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all scored CVEs.
- Low exploitation riskCVE-2026-463310.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all scored CVEs.
- Low exploitation riskCVE-2026-462090.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all 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
- low[UPDATE] [low] Linux Kernel: Vulnerability allows denial of servicecert-bund
- medium[UPDATE] [medium] Linux Kernel: Multiple Vulnerabilitiescert-bund
- high[UPDATE] [high] Linux Kernel (Dirty Frag): Multiple vulnerabilities allow gaining administrator rightscert-bund
- medium[UPDATE] [medium] Linux Kernel: Multiple Vulnerabilitiescert-bund
- medium[UPDATE] [medium] Linux Kernel: Multiple Vulnerabilitiescert-bund
- medium[UPDATE] [medium] Linux Kernel: Vulnerability Allows Bypassing Security Measurescert-bund
- high[UPDATE] [high] Linux Kernel (Fragnesia): Vulnerability Allows Gaining Administrator Rightscert-bund
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilities enable denial of servicecert-bund
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund
- medium[UPDATE] [medium] Linux Kernel: Vulnerability allows privilege escalationcert-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[UPDATE] [medium] Red Hat Enterprise Linux (perl-IO-Compress): Vulnerability allows executing arbitrary progra…cert-bund · 2026-07-10
- medium[UPDATE] [medium] Red Hat Enterprise Linux (crun): Vulnerability allows privilege escalationcert-bund · 2026-07-10
- high[UPDATE] [high] Red Hat Enterprise Linux (Lodash): Vulnerability allows denial of servicecert-bund · 2026-07-10
- medium[UPDATE] [medium] Red Hat Enterprise Linux (pyasn1): Vulnerability allows Denial of Servicecert-bund · 2026-07-10
- medium[UPDATE] [medium] Red Hat Enterprise Linux (LibRaw): Vulnerability allows code executioncert-bund · 2026-07-10
- high[UPDATE] [high] Red Hat Enterprise Linux (libsoup): Vulnerability allows information disclosurecert-bund · 2026-07-10
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