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CVE-2025-5087

Cleartext Transmission of Sensitive Information in Kaleris Navis N4

MEDIUM
6
CVSS Score
Published: June 24, 2025 at 06:30 PM UTC
Updated: June 17, 2026 at 09:47 AM UTC
1 product affected across 1 vendorNavis N4

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Severity
MEDIUM6
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Navis N4· Kaleris
60%
v < 4.0
Affected range stops below 4.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

US Government Resource
Source: [email protected]
https://www.cisa.gov/news-events/ics-advisories/icsa-25-175-01

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6MEDIUMicscert
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-319

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