CVE-2025-40892
highpriority · track · 36EPSS 0.003 · 17 %ileDEEUNLUSEPSS · scored 2026-10-27
A Stored Cross-Site Scripting vulnerability was discovered in the Reports functionality due to improper validation of an input parameter. An authenticated user with report privileges can define a malicious report containing a JavaScript payload, or a victim can be socially engineered to import a malicious report template. When the victim views or imports the report, the XSS executes in their browser context, allowing the attacker to perform unauthorized actions as the victim, such as modify application data, disrupt application availability, and access limited sensitive information.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedCMCnozomi_psirt
Upgrade to v25.5.0 or later.
- FixedGuardiannozomi_psirt
Upgrade to v25.5.0 or later.
- FixedRUGGEDCOM APE1808siemens_psirt
Upgrade Nozomi Guardian to v26.2.0. Contact customer support to receive patch and update information
- FixedRUGGEDCOM APE1808cisa_csaf_ot
Upgrade Nozomi Guardian to v26.2.0. Contact customer support to receive patch and update information
- MitigationCMCnozomi_psirt
Use internal firewall features to limit access to the web management interface. Review all accounts with access to it and delete unnecessary ones. Review existing report templates.
- MitigationGuardiannozomi_psirt
Use internal firewall features to limit access to the web management interface. Review all accounts with access to it and delete unnecessary ones. Review existing report templates.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.9–8.9
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (135)
Products and version ranges known to be affected.
advisories (4)
Vendor and ecosystem advisories describing this.
- NCSC-2026-0005Kwetsbaarheden verholpen in Siemens productenNL2026-01-13csaf · ncsc_nlNL
Siemens heeft kwetsbaarheden verholpen in diverse producten als Industrial Edge Devices, SCALANCE, SIMATIC, SIPLUS en Telecontrol Server.
- NN-2025:13-01Stored Cross-Site Scripting (XSS) in Reports in Guardian/CMC before 25.5.02025-12-18csaf · nozomi_psirtUS
- SSA-827968SSA-827968: Vulnerability in Nozomi Guardian/CMC Before V26.2.0 on RUGGEDCOM APE1808 Devices2026-01-13csaf · siemens_psirtDE
Nozomi Networks has published information on vulnerabilities in Nozomi Guardian/CMC. This advisory lists the related Siemens Industrial products affected by these vulnerabilities. Siemens has released a new version for RUGGEDCOM APE1808 and recommends to update to the latest version.
- ICSA-26-015-07Siemens RUGGEDCOM APE1808 Devices2026-01-13icsa · cisa_csaf_otUS
Nozomi Networks has published information on vulnerabilities in Nozomi Guardian/CMC. This advisory lists the related Siemens Industrial products affected by these vulnerabilities. Siemens has released a new version for RUGGEDCOM APE1808 and recommends to update to the latest version.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
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