CVE-2026-43216
Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. https://security-tracker.debian.org/tracker/DSA-6381-1
CSIRTS triage
- What
- Lock not properly released in skb_may_tx_timestamp() network function.
- Who is affected
- Linux systems with affected networking subsystem in kernel versions.
- Urgency
- Medium urgency; moderate CVSS score (5.5) and no active exploitation.
- Action
- Apply kernel patch to properly release lock in skb_may_tx_timestamp().
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Advisory coverage (3)
- mediumCVE-2026-43216: net: Drop the lock in skb_may_tx_timestamp()msrc · 2026-08-06
- unknownDebian Linux Kernel Multiple Vulnerabilitieshkcert · 2026-08-06
- unknownDSA-6381-1 linux - security updatedebian · 2026-07-05
External references
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