What is CVE-2025-40173?

CVE-2025-40173 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. net/ip6_tunnel: Prevent perpetual tunnel growth

Which CVE IDs does CVE-2025-40173 cover?

CVE-2025-40173 covers the following CVE IDs: CVE-2025-40173. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-40173?

CVE-2025-40173 has a CVSS v3 base score of 6.2, published by Microsoft Security Response Center (MSRC).

CVE-2025-40173MediumCVSS 6.2

net/ip6_tunnel: Prevent perpetual tunnel growth

Vendor

Microsoft Security Response Center (MSRC)

Published

May 31, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2025-40173 →