CVE-2021-45039

Katalog CVE

CVSS 9.8 · Critical EPSS 4,2%

Kerentanan Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') pada uniview camera firmware. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

31 Mei 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

EPSS (30 hari)

4,2% peluang dieksploitasi; lebih tinggi dari 90,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.uniview.com/About_Us/Security/Notice/202112/920471_140493_0.htm advisory vendor
• https://ssd-disclosure.com/ssd-advisory--uniview-preauth-rce/ exploit · advisory pihak ketiga