What’s Vulnerable › Vulnerabilities
CVE-2021-45039
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 4.2% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2023-05-31 · updated 2026-06-17
- Weakness: CWE-120
Description
Multiple models of the Uniview IP Camera (e.g., IPC_G6103 B6103.16.10.B25.201218, IPC_G61, IPC21, IPC23, IPC32, IPC36, IPC62, and IPC_HCMN) offer an undocumented UDP service on port 7788 that allows a remote unauthenticated attacker to overflow an internal buffer and achieve code execution. By using this buffer overflow, a remote attacker can start the telnetd service. This service has a hardcoded default username and password (root/123456). Although it has a restrictive shell, this can be easily bypassed via the built-in ECHO shell command.
Affected products
- Uniview Camera Firmware: all versions
References
- https://ssd-disclosure.com/ssd-advisory--uniview-preauth-rce/
- https://www.uniview.com/About_Us/Security/Notice/202112/920471_140493_0.htm
- https://ssd-disclosure.com/ssd-advisory--uniview-preauth-rce/
- https://www.uniview.com/About_Us/Security/Notice/202112/920471_140493_0.htm
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