CVE-2021-21727
First published: Mon Mar 29 2021(Updated: )
A ZTE product has a DoS vulnerability. A remote attacker can amplify traffic by sending carefully constructed IPv6 packets to the affected devices, which eventually leads to device denial of service. This affects:<ZXHN F623><All versions up to V6.0.0P3T33>
Credit: psirt@zte.com.cn
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Zte Zxhn F623 Firmware | <6.0.0p3t34 | |
| Zte Zxhn F623 |
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Frequently Asked Questions
What is CVE-2021-21727?
CVE-2021-21727 is a DoS vulnerability found in a ZTE product.
How does CVE-2021-21727 work?
CVE-2021-21727 allows a remote attacker to amplify traffic by sending carefully constructed IPv6 packets, leading to a denial of service.
Which ZTE product is affected by CVE-2021-21727?
CVE-2021-21727 affects the ZXHN F623 product from ZTE.
What versions of ZXHN F623 are affected by CVE-2021-21727?
All versions up to V6.0.0P3T33 of ZXHN F623 are vulnerable to CVE-2021-21727.
What is the severity of CVE-2021-21727?
CVE-2021-21727 has a severity rating of 7.5 (high).
How can I fix CVE-2021-21727?
To fix CVE-2021-21727, you should apply the necessary security patches or updates provided by ZTE.
Where can I find more information about CVE-2021-21727?
You can find more information about CVE-2021-21727 on the ZTE support website: https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014744
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