CVE-2026-81634

Vendor

Canonical

Product

canonical

CVSS

7.5

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. 28
   CVE NVD 16 Sep 2026

   In NLnet Labs Unbound up to and including 1.26.0, a 255 length query name with a large TCP response can lead to a heap buffer overflow during the…

   In NLnet Labs Unbound up to and including 1.26.0, a 255 length query name with a large TCP response can lead to a heap buffer overflow during the RRSet canonicalisation routine. This is caused by missing to add the first owner…

   CVSS 7.5 CVE-2026-81634 Canonical