CVE-2026-40414

high

Published 2026-05-12 · Modified 2026-06-01

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

7.4

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C

CVSS v4 NEW

—

not yet in upstream

VIR risk

7.4

Description

Windows TCP/IP Denial of Service Vulnerability

Predictions

Exploit likelihood

72%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

Windows Affected 3 releases

Version	Status	Fixed in
r2	Affected	—
-	Affected	—
—	Affected	`10.0.14393.9140`

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40414

CWEs

CWE-476

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.