CVE-2026-76163 (GCVE-0-2026-76163)
Vulnerability from cvelistv5 – Published: 2026-09-16 14:05 – Updated: 2026-09-17 17:38
VLAI
EPSS
VEX
Title
named aborts on a TKEY query when the user configuration has no global options statement
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 17:37 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-76163 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.20.29 | patch |
| https://downloads.isc.org/isc/bind9/9.21.26 | patch |
Impacted products
Date Public
2026-09-16 00:00
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