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TI-2025-02235 Aliases CVE-2025-2566GHSA-8jgr-qfg7-w699

Deserialization of Untrusted Data in Kaleris Navis N4

Priority MEDIUM 49CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00645 51st percentileScored 2026-11-07
Fix Fixed Navis N4 (Kaleris): 4.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
KalerisNavis N4before 4.04.0Patch availableCNA
  • Navis N4 VendorKaleris Affected before 4.0 Fixed in 4.0 Patch available CNA

Remediation

  • Fix · CNA Navis N4 (Kaleris) Fixed in 4.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Kaleris Navis N4 4.0

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2025-04562 Cleartext Transmission of Sensitive Information in Kaleris Navis N4Priority LOW 26
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-2566
  2. 2026-10-03 Alias added: GHSA-8jgr-qfg7-w699
  3. 2026-10-20 EPSS moved to the 50th–90th percentile

References

Other 1

  • TI-2026-23848 An issue in the login mechanism of Kaleris YMS v7.2.2.1 allows attackers to bypass login… CVSS 3.1CRITICAL 9.8
  • TI-2026-23847 Incorrect access control in Kaleris YMS v7.2.2.1 allows authenticated attackers with only… CVSS 3.1MEDIUM 4.3
  • TI-2025-04562 Cleartext Transmission of Sensitive Information in Kaleris Navis N4 CVSS 4.0MEDIUM 6.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences