CVE-2020-11623

PoC —1

CVSS 3.1

6.8 medium

EPSS

<1%p37

Published

Jul 23, 2020 (Jul 23, 2020)

Modified

Jun 17, 2026

Description

An issue was discovered in AvertX Auto focus Night Vision HD Indoor/Outdoor IP Dome Camera HD838 and Night Vision HD Indoor/Outdoor Mini IP Bullet Camera HD438. An attacker with physical access to the UART interface could access additional diagnostic and configuration functionalities as well as the camera's bootloader. Successful exploitation could compromise confidentiality, integrity, and availability of the affected system. It could even render the device inoperable.

Vendors: avertx
Products: hd838 firmware, hd438 firmware
Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.4%)

In the news1 stories

3 Vulnerabilities Found on AvertX IP Cameras

Unit 42 disclosed three vulnerabilities (CVE-2020-11623/4/5) in AvertX HD838 and 438IR IP cameras; AvertX has released patches.

Palo Alto Networks Unit 42 researchers found three vulnerabilities in AvertX HD838 and 438IR outdoor surveillance cameras, which are rebranded Hikvision products: CVE-2020-11625 (user enumeration), CVE-2020-11624 (weak password requirements), and CVE-2020-11623 (exposed dangerous method/function). User enumeration responses facilitate brute-force attacks, the default admin credentials (admin/1234) are never enforced to change, and physical access to an exposed UART interface allows bootloader access and configuration modification. AvertX released a patch, removed the UART connector, and disabled the interface in the latest production batch.

Palo Alto Unit 42Aug 18, 04:45 UTC · 28d agoVulnerability CVE-2020-11625 CVE-2020-11624 CVE-2020-11623