Cyber Resilience

CVE-2025-29883

High

Published: 06 June 2025

Published
06 June 2025
Modified
18 June 2025
KEV Added
Patch
CVSS Score v4 8.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0022 45.2th percentile
Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-29883 is a high-severity Improper Certificate Validation (CWE-295) vulnerability in Qnap File Station. Its CVSS base score is 8.3 (High).

Operationally, ranked at the 45.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

An improper certificate validation vulnerability has been reported to affect File Station 5. If exploited, the vulnerability could allow remote attackers who have gained user access to compromise the security of the system. We have already fixed the vulnerability in…

more

the following versions: File Station 5 5.5.6.4791 and later and later

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

qnap
file station
5.5.6.4691 — 5.5.6.4791

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-295

When certificates are used to establish component provenance, the control requires correct certificate validation procedures.

addresses: CWE-295

Mandates approved trust anchors and issuance policies, directly preventing acceptance of unvalidated or untrusted certificates.

addresses: CWE-295

Correct system time is required for proper enforcement of certificate notBefore/notAfter dates and time-based revocation checks.

References