CVE-2026-55991
Microsoft · Published July 23, 2026
5.9
CVSS v3.1
MEDIUMPatch availableGet patch
Description
Remote DNS-over-QUIC (DoQ) flow-control assertion failure in libngtcp2. Remote DNS-over-QUIC (DoQ) flow-control assertion failure in libngtcp2
Affected Products
- azl3 unbound 1.25.1-1 on Azure Linux 3.0
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H