CVE advisoryKnown Exploit
CVE-2015-5477
BIND Denial of Service via TKEY Queries.
Halo Surface Signal: 5 out of 5 — more likely to be public-facing.
A vulnerability in ISC BIND allows remote attackers to cause a denial of service by sending specially crafted TKEY queries, leading to an assertion failure and daemon exit. This impacts the reliability of DNS resolution, a critical internet service. The vulnerability is exploitable remotely, and while specific affected