Cloudanix VulnDB

CVE-2026-19630

High · 7.5

CVSS

7.5

EPSS

0.4%

Published

Oct 21, 2026

CISA due date

—

The record

In a BIND resolver, inbound DNS protocol messages with a particular structure will result in additional processing, with no limit imposed by BIND. A DNS message with a maliciously large number of such structures will cause BIND to consume disproportionate amounts of CPU time and memory during processing. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.29, 9.21.0 through 9.21.26, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.29-S1.

Affected packages

Ecosystem Package Introduced Fixed

Related vulnerabilities