CVE-2026-50252

Vendor

Canonical, Microsoft

Product

dnsmasq / Unbound / PowerDNS

EPSS

0.003 (p21)

Exposure class

Operating system, Edge / VPN / firewall

Every item in the archive that references this CVE, highest rank first. Headlines open the publisher.

1. 53
   Ubuntu notice Ubuntu 4h ago

   Unbound vulnerabilities

   USN-8946-1 fixed vulnerabilities in Unbound in Ubuntu 26.04 LTS, Ubuntu 24.04 LTS, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS, Ubuntu 18.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 14.04 LTS. This update provides the corresponding update for…

   CVE-2026-80225CVE-2026-81634CVE-2026-85501+5 more Canonical
2. 24
   CVE NVD 22 Jul 2026

   In NLnet Labs Unbound 1.4.22 up to and including 1.25.1, UDP source port is randomized and intended to serve as a secret value that increases the…

   In NLnet Labs Unbound 1.4.22 up to and including 1.25.1, UDP source port is randomized and intended to serve as a secret value that increases the entropy of DNS transactions. When resolver load balancing policies depend on the…

   CVE-2026-50252
3. 20
   Advisory MSRC 23 Jul 2026

   CVE-2026-50252 Possible cache poisoning attack by mapping source port population per thread

   Information published.

   CVE-2026-50252 Microsoft