Debian Linux Kernel Multiple Vulnerabilities

CSIRTS triage

What

Multiple vulnerabilities have been identified in the Linux Kernel.

Who is affected

Users of Debian Linux Kernel.

Urgency

Remediation is important due to the potential for various exploits.

Action

Update to the latest patched version of the Linux Kernel.

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

Details

Source

HKCERT Security Bulletins (HK · national-cert · site)

Severity

unknown

Published

2026-06-30

Exploitation

Not in CISA KEV at last sync

Original advisory: https://www.hkcert.org/security-bulletin/debian-linux-kernel-multiple-vulnerabilities_20260630

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-2025-220690.18% 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-2025-682510.17% 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-2025-687680.17% 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-2025-712890.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all scored CVEs.
• Low exploitation riskCVE-2026-232470.12% 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-2026-232720.12% 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-2026-233460.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all scored CVEs.
• Low exploitation riskCVE-2026-233940.09% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all scored CVEs.
• Low exploitation riskCVE-2026-234690.09% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all scored CVEs.
• Low exploitation riskCVE-2026-314200.09% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all scored CVEs.

Referenced CVEs

+5 more CVEs referenced in this advisory.

Same CVEs, other sources

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

• 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 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 vulnerabilities enable denial of servicecert-bund

Recent advisories for Debian Linux Kernel

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.

• unknownMultiple vulnerabilities in Debian LTS Linux kernel (July 10, 2026)cert-fr-avis · 2026-07-10
• unknownDebian Linux Kernel Multiple Vulnerabilitieshkcert · 2026-07-06
• unknownMultiple vulnerabilities in the Debian Linux kernel (June 26, 2026)cert-fr-avis · 2026-06-26

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