Detections
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Echo: bind9: security update to 1:9.20.26-1~deb13u1

high Tenable Self-Hosted Container Security Plugin ID 465589

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - The issue is unexpected program termination based on ordering and/or specific content in responses to
 queries for CNAME or DNAME, and A records. Specifically, if a client queries for a DNAME and A record
 below the DNAME to the resolver, and the authoritative server responds positively to the A query but
 delays the DNAME response and later responds negatively, `named` may quit unexpectedly. Or, if a client
 queries for a CNAME and A record for the same name to the resolver, and the authoritative server responds
 positively to the A query but delays the CNAME response and later responds with a self-referential CNAME,
 the same failure may occur. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through
 9.20.24, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1. (CVE-2026-12617)

Solution

Update the bind9 library and its related packages to version 1:9.20.26-1~deb13u1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-12617

Plugin Details

Severity: High

ID: 465589

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.92

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-12617

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/23/2026

Vulnerability Publication Date: 7/22/2026

Reference Information

CVE: CVE-2026-12617

IAVA: 2026-A-0764-S