CVE-2025-2566 - CVE House
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Status published Critical CVE-2025-2566

Deserialization of Untrusted Data in Kaleris Navis N4

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from Kaleris

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CVE-2025-5087
Cleartext Transmission of Sensitive Information in Kaleris Navis N4
Medium 6

Affected Vendor

Affected Software

Navis N4
Vulnerable Versions:
0

Timeline

Official Publish: June 24th, 2025
Last Modified: June 24th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

CWE-502

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1059 Command and Scripting Interpreter
Execution
T1505.003 Web Shell
Persistence
T1105 Ingress Tool Transfer
Command and Control
T1068 Exploitation for Privilege Escalation
Privilege Escalation