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Tenable Security Center Multiple Vulnerabilities (TNS-2026-10)

high Nessus Plugin ID 307259

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Synopsis

An instance of Security Center installed on the remote system is affected by multiple vulnerabilities.

Description

According to its self-reported version, the Tenable Security Center running on the remote host is 6.5.0 through 6.8.0 and missing security patch SC-202604.1. It is, therefore, affected by multiple vulnerabilities as referenced in the TNS-2026-10 advisory.

 - Missing validation of multibyte character length in PostgreSQL text manipulation allows a database user to issue crafted queries that achieve a buffer overrun. That suffices to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected. (CVE-2026-2006)

 - Heap buffer overflow in PostgreSQL pgcrypto allows a ciphertext provider to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected. (CVE-2026-2005)

 - Missing validation of type of input in PostgreSQL intarray extension selectivity estimator function allows an object creator to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected. (CVE-2026-2004)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Apply security patch SC-202604.1 or later. For version 6.5.0, upgrade to 6.5.1 and apply the patch.

See Also

http://www.nessus.org/u?d5587a0b

https://www.tenable.com/security/TNS-2026-10

Plugin Details

Severity: High

ID: 307259

File Name: securitycenter_6_8_0_tns_2026_10.nasl

Version: 1.4

Type: Combined

Agent: unix

Family: Misc.

Published: 4/17/2026

Updated: 5/15/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.6

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7

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

CVSS Score Source: CVE-2026-2006

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

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

Vulnerability Information

CPE: cpe:/a:tenable:security_center

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/7/2026

Vulnerability Publication Date: 2/12/2026

Reference Information

CVE: CVE-2026-2003, CVE-2026-2004, CVE-2026-2005, CVE-2026-2006