Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Isc | Bind | >= 9.20.0, < 9.20.21 |
Related Weaknesses (CWE)
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
FAQ
What is CVE-2026-3119?
CVE-2026-3119 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 sign...
How severe is CVE-2026-3119?
CVE-2026-3119 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-3119?
Check the references section above for vendor advisories and patch information. Affected products include: Isc Bind.