What’s Vulnerable › Vulnerabilities
CVE-2025-2566: Deserialization of Untrusted Data in Kaleris Navis N4
- Severity: critical (CVSS 9.3 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-06-24 · updated 2026-06-17
- Weakness: CWE-502
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.
Affected products
- Kaleris Navis N4: before 4.0 — fixed in 4.0
How to fix
Upgrade to a fixed version: Kaleris Navis N4 4.0. Check the vendor advisory for mitigations.
References
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