CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 4.6. See the original NVD description below for full technical details.
CVE
CVE-2021-21739
Severity
MEDIUM
CVSS
4.6
EPSS
0.25%
Original NVD Description
A ZTE's product of the transport network access layer has a security vulnerability. Because the system does not sufficiently verify the data reliability, attackers could replace an authenticated optical module on the equipment with an unauthenticated one, bypassing system authentication and detection, thus affecting signal transmission. This affects: <ZXCTN 6120H><V5.10.00B24>
Related CVEs
Other vulnerabilities affecting the same vendor(s)