← Back

CVE-2021-21739

nvd nist
Published: Aug 5, 2021Modified: Jun 17, 2026

JSON object

Loading...
4.6
Vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Exploitability: 0.9 / Impact: 3.6
Source: 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>

Affected (1)

Zte
1 product
Zxctn 6120h Firmware
Configuration A
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Zxctn 6120h Firmware
Version 5.10.00b24
Running on/withPlatform Versions
Zte
Zxctn 6120h
All versions

Related CWEs

CWE-345
Insufficient Verification of Data Authenticity
The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

References (2)

Source: psirt@zte.com.cn
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

Timeline

No history available yet.