CVE-2026-3119

MEDIUM

Authenticated query containing a TKEY record may cause named to terminate unexpectedly

Title source: cna
STIX 2.1

Description

Under certain conditions, `named` may crash when processing a correctly signed query containing a TKEY record. The affected code can only be reached if an incoming request has a valid transaction signature (TSIG) from a key declared in the `named` configuration. This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1. BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.

References (3)

Core 3
Core References
Vendor Advisory vendor-advisory
CVE-2026-3119
https://kb.isc.org/docs/cve-2026-3119

Scores

CVSS v3 6.5
EPSS 0.0058
EPSS Percentile 42.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-617
Status published
Products (6)
isc/bind 9.20.0 - 9.20.21
ISC/BIND 9 9.18.0 - 9.18.46
ISC/BIND 9 9.18.11-S1 - 9.18.46-S1
ISC/BIND 9 9.20.0 - 9.20.20
ISC/BIND 9 9.20.9-S1 - 9.20.20-S1
ISC/BIND 9 9.21.0 - 9.21.19
Published Mar 25, 2026
Tracked Since Mar 25, 2026