USN-8547-2: Linux kernel (Azure FIPS) vulnerabilities

CSIRTS triage

What

Multiple security issues could allow attackers to compromise the system.

Who is affected

Systems running the affected Linux kernel, particularly in Azure FIPS environments.

Urgency

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

Action

Update the Linux kernel to the latest version to mitigate these vulnerabilities.

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

Details

Source

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

Severity

unknown

Published

2026-07-28

Exploitation

Not in CISA KEV at last sync

Original advisory: https://ubuntu.com/security/notices/USN-8547-2

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-2022-488160.25% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all scored CVEs.
• Low exploitation riskCVE-2023-536730.17% 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-2025-377780.48% 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-2025-378220.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all scored CVEs.
• Elevated exploitation riskCVE-2025-3792411.0% 30-day exploitation probability — well above the norm. Schedule remediation this cycle. Riskier than 95% of all scored CVEs.
• Low exploitation riskCVE-2025-382010.19% 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-2025-400820.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all scored CVEs.
• Low exploitation riskCVE-2025-682140.19% 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-2025-682630.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 31% of all scored CVEs.
• Low exploitation riskCVE-2025-710890.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all scored CVEs.

Referenced CVEs

+17 more CVEs referenced in this advisory.

Same CVEs, other sources

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

• 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
• medium[UPDATE] [medium] 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
• high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund
• high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund
• high[UPDATE] [high] Linux Kernel: Multiple vulnerabilities allow denial of servicecert-bund
• unknownMultiples vulnérabilités dans le noyau Linux d'Ubuntu (31 juillet 2026)cert-fr-avis

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