Unrestricted Upload Vulnerability in Tiandy Video Surveillance System
CVE-2026-3797

5.3MEDIUM

Key Information:

Vendor

Tiandy

Status
Video Surveillance System 视频监控平台
Vendor
CVE Published:
9 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3797?

A security flaw in Tiandy Video Surveillance System version 7.17.0 allows unauthorized users to exploit the uploadFile function located in CLS_REST_File.java. By manipulating the 'fileName' parameter, attackers can achieve unrestricted uploads of potentially malicious files. This vulnerability poses significant risks as it can be exploited remotely, enabling the execution of harmful files on the server. Despite early disclosure, the vendor has not responded, raising concerns over security and potential exploitation.

Affected Version(s)

Video Surveillance System 视频监控平台 7.17.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-3797 - Proof of Concept

References

https://vuldb.com/?id.349764
vdb-entrytechnical-description
https://vuldb.com/?ctiid.349764
signaturepermissions-required
https://vuldb.com/?submit.766386
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

red88-debug (VulDB User)
VulDB
.