Detections
Analytics
Tenable Security Center < 6.9.0 Multiple Vulnerabilities (TNS-2026-22)
critical Nessus Plugin ID 339129
Language:
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 prior to 6.9.0. It is, therefore, affected by multiple vulnerabilities as referenced in the TNS-2026-22 advisory.- libcurl might in some circumstances reuse the wrong connection for SMB(S) transfers. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead.
When reusing a connection a range of criteria must be met. Due to a logical error in the code, a network transfer operation that was requested by an application could wrongfully reuse an existing SMB connection to the same server that was using a different 'share' than the new subsequent transfer should. This could in unlucky situations lead to the download of the wrong file or the upload of a file to the wrong place.
When this happens, the same credentials are used and the server name is the same. (CVE-2026-5773)
- libcurl keeps previously used connections in a connection pool for subsequent transfers to reuse if one of them matches the setup. An easy handle that first uses default native CA trust can continue trusting the native platform store after the application switches that same handle to custom CA material for a later transfer. (CVE-2026-11564)
- A command injection vulnerability exists in Security Center where a remote, unauthenticated attacker could exploit this issue to execute arbitrary commands on the underlying operating system with the privileges of the service account. (CVE-2026-19682)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade to Tenable Security Center 6.9.0 or later.See Also
Plugin Details
Severity: Critical
ID: 339129
File Name: securitycenter_6_9_0_tns_2026_22.nasl
Version: 1.5
Type: Combined
Agent: unix
Family: Misc.
Published: 8/24/2026
Updated: 8/28/2026
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7
Percentile: 98.2
Vendor
Vendor Severity: Critical
CVSS v2
Risk Factor: High
Base Score: 9
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2026-19682
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C
CVSS Score Source: CVE-2026-5773
CVSS v4
Risk Factor: Critical
Base Score: 9.4
Threat Score: 8.6
Threat Vector: CVSS:4.0/E:P
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Vulnerability Information
CPE: cpe:/a:tenable:security_center
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 8/13/2026
Vulnerability Publication Date: 3/3/2026
Exploitable With
Metasploit (Tenable Security Center SCAP Audit File Command Injection)
Reference Information
CVE: CVE-2026-11564, CVE-2026-11586, CVE-2026-11856, CVE-2026-12064, CVE-2026-19626, CVE-2026-19628, CVE-2026-19629, CVE-2026-19631, CVE-2026-19635, CVE-2026-19636, CVE-2026-19639, CVE-2026-19679, CVE-2026-19680, CVE-2026-19681, CVE-2026-19682, CVE-2026-27601, CVE-2026-3784, CVE-2026-4873, CVE-2026-5545, CVE-2026-5773
IAVA: 2026-A-0901