Detections
Analytics

Siemens SINEC OS Use of Web Browser Cache Containing Sensitive Information (CVE-2026-41918)

medium Tenable OT Security Plugin ID 505402

Synopsis

The remote OT asset is affected by a vulnerability.

Description

The affected applications stores sensitive information in the browser cache when an authenticated user modify specific configurations. This could allow an authenticated attacker to access sensitive data stored in the browser.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original can be found at CISA.gov.

See Also

https://cert-portal.siemens.com/productcert/html/ssa-253495.html

https://support.industry.siemens.com/cs/ww/en/view/110002573/

https://www.cisa.gov/news-events/ics-advisories/icsa-26-188-05

Plugin Details

Severity: Medium

ID: 505402

File Name: tenable_ot_siemens_CVE-2026-41918.nasl

Version: 1.4

Type: Remote

Family: Tenable.ot

Published: 6/18/2026

Updated: 7/23/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.75

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-41918

CVSS v3

Risk Factor: Medium

Base Score: 5.7

Temporal Score: 5

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

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

CVSS v4

Risk Factor: Medium

Base Score: 5.9

Threat Score: 2

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:siemens:ruggedcom_rst2428p_firmware

Required KB Items: Tenable.ot/Siemens

Exploit Ease: No known exploits are available

Patch Publication Date: 6/2/2026

Vulnerability Publication Date: 6/2/2026

Reference Information

CVE: CVE-2026-41918

CWE: 525