USN-8490-2: Linux kernel (Real-time) vulnerabilities

CSIRTS triage

What

Several security issues could allow an attacker to compromise the system.

Who is affected

Users of the Linux kernel on Raspberry Pi are affected.

Urgency

Remediation is important as these vulnerabilities could lead to system compromise.

Action

Update the Linux kernel to the latest version to fix these issues.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source

Ubuntu Security Notices (INTL · vendor-psirt · site)

Severity

unknown

Published

2026-07-17

Exploitation

Not in CISA KEV at last sync

Original advisory: https://ubuntu.com/security/notices/USN-8490-2

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-2026-229840.35% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 28% of all scored CVEs.
• Low exploitation riskCVE-2026-232720.12% 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-2026-232780.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all scored CVEs.
• Low exploitation riskCVE-2026-233920.12% 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-2026-234270.29% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 21% of all scored CVEs.
• Low exploitation riskCVE-2026-234280.33% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 26% of all scored CVEs.
• Low exploitation riskCVE-2026-234500.56% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 43% of all scored CVEs.
• Moderate exploitation riskCVE-2026-234551.3% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 68% of all scored CVEs.
• Low exploitation riskCVE-2026-314020.49% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all scored CVEs.
• Low exploitation riskCVE-2026-314180.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all scored CVEs.

Referenced CVEs

+13 more CVEs referenced in this advisory.

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

• highUSN-8620-4: Linux kernel (Intel IoTG) vulnerabilitiesubuntu
• high[UPDATE] [high] Linux Kernel: Multiple vulnerabilities enable denial of servicecert-bund
• high[UPDATE] [high] Linux Kernel: Multiple vulnerabilities allow denial of servicecert-bund
• high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund
• high[UPDATE] [medium] Linux Kernel: Vulnerability Allows Unspecified Attackcert-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
• 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

More from Ubuntu Security Notices

• highUSN-8620-4: Linux kernel (Intel IoTG) vulnerabilities2026-07-31
• highUSN-8620-3: Linux kernel (Intel IoTG) vulnerabilities2026-07-31
• unknownUSN-8625-1: OpenSSL vulnerability2026-07-30
• unknownUSN-8624-1: Sinatra vulnerability2026-07-29
• unknownUSN-8623-1: Linux kernel (NVIDIA) vulnerabilities2026-07-29