Detections
Analytics
Tenable Security Center Multiple Vulnerabilities (TNS-2026-28)
critical Nessus Plugin ID 371459
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 6.9.1 or earlier and missing security patch SC-202610.1. It is, therefore, affected by multiple vulnerabilities as referenced in the TNS-2026-28 advisory.- PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave request memory in an uninitialized state before performing an allocation. The subsequent request cleanup procedure may read or branch on this memory. Multiple OOM strategies can consistently trigger this condition and lead to remote code execution (RCE). (CVE-2026-109618)
- PHP has various global state that temporarily points into request memory. In some scenarios, global state may not be correctly reset, or may be repopulated after being reset. The global state may then refer to request memory even after it has been freed. Subsequent requests may read or branch on this stale state before it is fully initialized. Multiple strategies can trigger this condition and produce remote code execution (RCE). (CVE-2026-109619)
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-202610.1 or later.See Also
https://www.tenable.com/downloads/security-center
https://www.tenable.com/security/TNS-2026-28
Plugin Details
Severity: Critical
ID: 371459
File Name: securitycenter_6_9_1_tns_2026_28.nasl
Version: 1.1
Type: Combined
Agent: unix
Family: Misc.
Published: 10/23/2026
Updated: 10/23/2026
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Critical
Score: 9.4
Percentile: 99.83
CVSS v2
Risk Factor: Critical
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-109618
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4
Risk Factor: Critical
Base Score: 9.2
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Vulnerability Information
CPE: cpe:/a:tenable:securitycenter
Patch Publication Date: 10/22/2026
Vulnerability Publication Date: 10/22/2026