CVE-2021-21739

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...

CVE-2021-21739

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...

CVE-2021-21739

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...

CVE-2021-21739

CVE-2021-21739 affects ZTE ZXCTN 6120H with firmware version 5.10.00B24. The root cause is insufficient verification of data reliability, enabling an attacker to replace an authenticated optical module with an unauthenticated one and bypass system authentication/detection, thereby affecting signa...

PT-2021-14750

Name of the Vulnerable Software and Affected Versions ZTE ZXCTN 6120H version V5.10.00B24 Description A security issue exists in ZTE's transport network access layer product due to insufficient data reliability verification. This allows attackers to replace an authenticated optical module with an...