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CVE-2026-75492

7.5, high

Shenzhen Cudy Technology Co., Ltd. TR3000 1.0 Stack-based Buffer Overflow Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.5, high high CVSS v3.1
EPSS, next 30 days
2% higher than 81.7% of scored CVEs
Exploitation
No public evidence
Published
13 Nov 2026yesterday

Description

Cudy TR3000 before 2.5.42 contains an unauthenticated stack buffer overflow vulnerability in the stun_client TR-111 UDP Connection Request parser that parses requests before verifying username or HMAC. Remote attackers can send a single crafted UDP datagram lacking a space in the request line, causing strncpy() to overflow a 10-byte stack buffer and crash stun_client for denial of service.

Details

Vendor
Shenzhen Cudy Technology Co., Ltd.
Product
TR3000 1.0
Weakness
CWE-121 (opens in a new tab)
Status
Received
Updated
13 Nov 2026
Assigner
disclosure@vulncheck.com

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References 3

Other references 3

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Shenzhen Cudy Technology Co., Ltd. CVEs

Every Shenzhen Cudy Technology Co., Ltd. CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-126953 Shenzhen Cudy Technology Co., Ltd. TR3000 1.0 OS Command Injection Vulnerability EPSS 3% 8.1, high
  • CVE-2026-75487 Shenzhen Cudy Technology Co., Ltd. TR3000 1.0 OS Command Injection Vulnerability EPSS 2% 7.2, high
  • CVE-2026-75491 Cudy TR3000 before 2.5.42 contains an authentication bypass vulnerability in the Mosquitto plugin auth_plugin_jwt.so that accepts… EPSS 0.2% 8.1, high
  • CVE-2026-75495 Shenzhen Cudy Technology Co., Ltd. TR3000 1.0 OS Command Injection Vulnerability EPSS 3% 8.1, high
  • CVE-2026-75576 Shenzhen Cudy Technology Co., Ltd. TR3000 1.0 OS Command Injection Vulnerability EPSS 2% 7.2, high
  • CVE-2026-129100 Cudy TR3000 before 2.5.42 contains a remote code execution vulnerability that allows authenticated administrators to execute commands as… 7.2, high
  • CVE-2026-129101 Cudy TR3000 before 2.5.42 contains a mass assignment vulnerability in the vpn.set_conf App RPC method that allows authenticated… 7.2, high
  • CVE-2026-129102 Cudy TR3000 before 2.5.42 contains a command injection vulnerability that allows authenticated administrators to execute commands as… 7.2, high

Beyond this page

Is CVE-2026-75492 in your network?

This page tells you how dangerous CVE-2026-75492 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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  • EXYS7950 KONDRA

    Detect it if it's exploited

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 14 Nov 2026, not the live upstream state.