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CVE-2026-3119

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CVE-2026-3119

Published: Mar 25, 2026

Modified: Mar 25, 2026

PUBLISHED

CVSS v3.1

6.5

MEDIUM

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.

VendorProductVersions

ISC

BIND 9

affected
9.20.0 - <= 9.20.20
affected
9.21.0 - <= 9.21.19
affected
9.20.9-S1 - <= 9.20.20-S1
unaffected
9.18.0 - <= 9.18.46
unaffected
9.18.11-S1 - <= 9.18.46-S1

Weaknesses (CWE)

CWE-617

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

CVE-2026-3119
vendor-advisory

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