CVE-2026-76163CWE-617

CVE-2026-76163

High · published September 16, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
46.4
In the wild
Unconfirmed
What it is

If BIND is loaded with a "`named.conf`" file that contains no global "`options`" block, an attacker can send a query of QTYPE TKEY which may cause an assertion failure and subsequent unexpected program exit.

This issue affects BIND 9 versions 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, and 9.20.9-S1 through 9.20.27-S1.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00569 · 46.4th percentile
Weakness
CWE-617 · Reachable Assertion
Published
2026-09-16T19:17Z
References (3)
https://downloads.isc.org/isc/bind9/9.20.29 · [email protected]https://downloads.isc.org/isc/bind9/9.21.26 · [email protected]https://kb.isc.org/docs/cve-2026-76163 · [email protected]
EPSS history
Timeline
  • 18 SEP 04:01Z
    EPSS moved — → 0%
    epss
  • 16 SEP 14:05Z
    named aborts on a TKEY query when the user configuration has no global options statement
    cvelistv5