What is CVE-2025-49507?

CVE-2025-49507 is a critical-severity vulnerability in Loftocean Cozystay, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2025-06-10.

How severe is CVE-2025-49507?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2025-49507 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Loftocean Cozystay

CVE-2025-49507

Deserialization of Untrusted Data vulnerability in LoftOcean CozyStay cozystay allows Object Injection.This issue affects CozyStay: from n/a through < 1.7.1.

Vulnerability class: Insecure Deserialization

EPSS: 0.005 (39.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Loftocean Cozystay — versions 0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2025-49507?: CVE-2025-49507 is a critical-severity vulnerability in Loftocean Cozystay, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2025-06-10.
How severe is CVE-2025-49507?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2025-49507 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.