Detections
Analytics
Siemens APOGEE Controllers Integer Underflow (CVE-2026-102073)
high Tenable OT Security Plugin ID 506403
Synopsis
The remote OT asset is affected by a vulnerability.Description
The affected product web service does not properly validate the length of user-controllable input. This could allow an unauthenticated remote attacker to read portions of device memory or to cause a denial-of-service condition.This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.
Solution
Refer to the vendor advisory.See Also
https://cert-portal.siemens.com/productcert/html/ssa-333035.html
Plugin Details
Severity: High
ID: 506403
File Name: tenable_ot_siemens_CVE-2026-102073.nasl
Version: 1.2
Type: Remote
Family: Tenable.ot
Published: 10/20/2026
Updated: 10/21/2026
Supported Sensors: Tenable OT Security
Risk Information
VPR
Risk Factor: Low
Score: 3.5
Percentile: 51.42
CVSS v2
Risk Factor: High
Base Score: 8.5
Temporal Score: 6.3
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:P
CVSS Score Source: CVE-2026-102073
CVSS v3
Risk Factor: High
Base Score: 8.2
Temporal Score: 7.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: High
Base Score: 8.8
Threat Score: 6.7
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N
Vulnerability Information
CPE: cpe:/o:siemens:apogee_modular_building_controller_firmware, cpe:/o:siemens:apogee_modular_equiment_controller_firmware, cpe:/o:siemens:apogee_pxc_compact_firmware, cpe:/o:siemens:apogee_pxc_modular_firmware
Required KB Items: Tenable.ot/Siemens
Exploit Ease: No known exploits are available
Patch Publication Date: 10/13/2026
Vulnerability Publication Date: 10/13/2026
Reference Information
CVE: CVE-2026-102073
CWE: 191