VulnerabilityAnalyzed

CVE-2026-3119

Under certain conditions, `named` may crash when processing a correctly signed query containing a TKEY record.

MEDIUM 6.5EPSS 0.58%

Does this matter?

Lower severity and a low EPSS score (0.58%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.58% probability · 46th percentile
CISA KEV: Not listed
Weakness: CWE-617
Affected: isc/bind
Source: security-officer@isc.org

References

https://downloads.isc.org/isc/bind9/9.20.21Patch
https://downloads.isc.org/isc/bind9/9.21.20Patch
https://kb.isc.org/docs/cve-2026-3119Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.