CVE-2025-2566 CRITICAL

CVE-2025-2566: Deserialization of Untrusted Data in Kaleris Navis N4

Vendor Kaleris
Product Navis N4
Weakness CWE-502 · Unsafe deserialization
Published June 24, 2025
Last update June 24, 2025
View on NVD All CVEs

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 24, 2025 CVE published
June 24, 2025 Record updated