HOMEVULNERABILITIESCVE-2026-3119
MEDIUM

CVE-2026-3119

CWE-617Published: March 25, 2026· Updated: Mar 25, 2026

6.5
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2026-3119 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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All References (3)

Quick Facts

CVE IDCVE-2026-3119
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-617
CISA KEVNo
PublishedMar 25, 2026

Related CVEs (CWE-617)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2026-3119 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.