PT-2025-26770 · Aleris+1 · Kaleris Navis N4 Ulc+1

Published 2025-06-24 · Updated 2025-06-24 · CVE-2025-5087

Positive Technologies (AI Summary)

CVSS v4.0

6.0

Medium

Base vector

AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions: Kaleris NAVIS N4 ULC (Ultra Light Client) (affected versions not specified)

Description: The issue concerns insecure communication 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.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Cleartext Transmission of Sensitive Information

Weakness Enumeration

CWE-319

Related Identifiers

CVE-2025-5087

Affected Products

Kaleris Navis N4 Ulc

Zlib

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2025-5087 · Security Note
• https://t.me/cvetracker/26968 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1937596153836548352 · Twitter Post
• https://twitter.com/CVEnew/status/1937584278801461360 · Twitter Post
• https://cisa.gov/news-events/ics-advisories/icsa-25-175-01 · Note