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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (38.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001
Affected products
- Tiandy Video Surveillance System
- Tiandy Video Surveillance System Firmware — versions 7.17.0
- Tiandy Video Surveillance System 视频监控平台 — versions 7.17.0
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- my.feishu.cn/docx/P3Bgdl9BHocn66xCMpCcgCD7nhe (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.