CVE-2025-40893
MEDIUMNozomi Networks CMC and Guardian < 25.5.0 - Unauthenticated Stored HTML Injection in Asset List
Title source: llmDescription
A Stored HTML Injection vulnerability was discovered in the Asset List functionality due to improper validation of network traffic data. An unauthenticated attacker can send specially crafted network packets to inject HTML tags into asset attributes. When a victim views the affected assets in the Asset List (and similar functions), the injected HTML renders in their browser, enabling phishing and possibly open redirect attacks. Full XSS exploitation and direct information disclosure are prevented by the existing input validation and Content Security Policy configuration.
References (2)
Core 2
Core References
Vendor Advisory
https://cert-portal.siemens.com/productcert/html/ssa-827968.html
Vendor Advisory
https://security.nozominetworks.com/NN-2025:14-01
Scores
CVSS v3
6.1
EPSS
0.0016
EPSS Percentile
5.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (4)
Nozomi Networks/CMC
< 25.5.0
Nozomi Networks/Guardian
< 25.5.0
nozominetworks/cmc
< 25.5.0
nozominetworks/guardian
< 25.5.0
Published
Dec 18, 2025
Tracked Since
Feb 18, 2026