CVE-2026-74705: udp: fix potential use-after-free in tunnel segmentation
CSIRTS triage
- What
- UDP tunnel segmentation contains use-after-free vulnerability in packet processing.
- Who is affected
- Linux systems with UDP tunnel implementations enabled.
- Urgency
- Medium priority; not exploited but risks memory corruption.
- Action
- Apply kernel patch for UDP tunnel segmentation use-after-free fix.
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-2026-74705
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-2026-747050.50% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 41% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-74705 | coverage & exploitation status | NVD · CVE.org |
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