CVE-2026-121508

Medium CVSS 5.9

Published 2026-11-03 · last changed 2026-11-03

The fix

We hold no Microsoft remediation data for CVE-2026-121508, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

Use-After-Free in µD3TN BPv6 Fragmenter Cleanup allows Unauthenticated Remote Attacker to Cause DoS on Allocation Failure

Sources

NVD record for CVE-2026-121508

CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H