CVE-2026-74628: net/x25: fix use-after-free of the socket by its timers
CSIRTS triage
- What
- Use-after-free vulnerability where X.25 protocol socket timers access a freed socket structure.
- Who is affected
- Systems using the X.25 networking protocol on vulnerable kernel versions.
- Urgency
- Medium urgency; not currently exploited but use-after-free can cause crashes or code execution.
- Action
- Apply kernel patch fixing use-after-free of socket by its timers in the X.25 protocol implementation.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-74628
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-2026-746280.49% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 40% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-74628 | coverage & exploitation status | NVD · CVE.org |
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