Arbitrary file upload in Tiandy Video Surveillance System

CVE-2026-3797

A security vulnerability has been detected in Tiandy Video Surveillance System 视频监控平台 7.17.0. The impacted element is the function uploadFile of the file /src/com/tiandy/easy7/core/rest/CLS_REST_File.java. The manipulation of the argument fileName leads to unrestricted upload. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

EPSS: 0.004 (28.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Weakness classification (CWE)

References

  • cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
  • cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
  • cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
  • cna@vuldb.com (Permissions Required, exploit)

Frequently asked questions

What is CVE-2026-3797?
CVE-2026-3797 is a medium-severity vulnerability in Tiandy Video Surveillance System, classified under Improper Access Control. CVSS score: 6.3/10. Published 2026-03-09.
How severe is CVE-2026-3797?
Medium severity. CVSS v3 base score is 6.3 out of 10.