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CVE-2025-2566

Critical

Description

Kaleris NAVIS N4 ULC (Ultra Light Client) contains an unsafe Java deserialization vulnerability. An unauthenticated attacker can make specially crafted requests to execute arbitrary code on the server.

SeverityCritical
CVSS9.3
Exploit probability—
ProductNavis N4
PublishedJun 24, 2025
First seenJun 24, 2025
Weakness typeCWE-502Deserialization of untrusted data

How to fix

Update
  • Kaleris Navis N44.0 or later

Affected products

ProductAffected versionsFixed in
Kaleris Navis N4v < 4.04.0

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