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CVE-2025-40891

HTML injection in in Time Machine functionality in Guardian/CMC before 25.5.0

Published: Dec 18, 2025Updated: Apr 14, 2026 Sources: CVE List NVD csafCWE-79
NVD MITRE
4.7CVSSMEDIUM
EPSS Score
0.1%
Top 96.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-79

Affected Products

cmcnozominetworks
On-premSecurity Product
Security Products / vuln-mgmt-scanner
guardiannozominetworks
On-premNetwork Device
Security Products / secure-gateway-vpn
GuardianNozomi Networks
On-premSecurity Product
Security Products / vuln-mgmt-scanner
CMCNozomi Networks
On-premSecurity Product
Security Products / vuln-mgmt-scanner
nozominetworkscommercialSecurity Productsaka guardian, cmc, central management control
nozomi networkscommercialSecurity Productsaka nozomi networks

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/csaf/ssa-827968.json
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-827968.html
cert-portal.siemens.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-015-07.json
raw.githubusercontent.com
and 23 more references View all →

Timeline

Published
Dec 18, 2025
Last Updated
Apr 14, 2026

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