Detections
Analytics

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

high Tenable Self-Hosted Container Security Plugin ID 464976

Description

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

 - If a provably insecure domain is covered by both an NSEC and NSEC3 record at the parent, and there exist
 an RRSIG for only one of these types, then BIND may exit unexpectedly with an assertion while validating
 this proof. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0
 through 9.21.23, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1. (CVE-2026-13204)

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-2026-13204

Plugin Details

Severity: High

ID: 464976

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.74

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-2026-13204

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-2026-13204

IAVA: 2026-A-0764-S