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4.6
CVSSv3

CVE-2021-21739

Published: 05/08/2021 Updated: 12/08/2021
CVSS v2 Base Score: 2.1 | Impact Score: 2.9 | Exploitability Score: 3.9
CVSS v3 Base Score: 4.6 | Impact Score: 3.6 | Exploitability Score: 0.9
VMScore: 187
Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N
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Vulnerability Summary

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>

Vulnerability Trend

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zte zxctn_6120h_firmware 5.10.00b24

References

CWE-345https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1017024https://nvd.nist.gov
CVSSv3
CVSSv2
CVSSv3
VMScore
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