Vulnerability · Published Jun 24, 2025 · Assigned by icscert

CVE-2025-5087Cleartext Transmission of Sensitive Information in Kaleris Navis N4

Medium 6.0

In plain English

A medium-severity security flaw in Navis N4 from Kaleris. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 4.0)6.0Medium

Exploit odds (30 days)0.3%top 82.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Kaleris NAVIS N4 ULC (Ultra Light Client) communicates insecurely using zlib-compressed data over HTTP. An attacker capable of observing network traffic between Ultra Light Clients and N4 servers can extract sensitive information, including plaintext credentials.

Affected products (as reported)

Vendor	Product	Versions
Kaleris	Navis N4	0 – before 4.0

Weakness: CWE-319 · Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

References

https://www.cisa.gov/news-events/ics-advisories/icsa-25-175-01 government-resource