CVE-2021-21740
First published: Mon Aug 09 2021(Updated: )
There is an information leak vulnerability in the digital media player (DMS) of ZTE's residential gateway product. The attacker could insert the USB disk with the symbolic link into the residential gateway, and access unauthorized directory information through the symbolic link, causing information leak.
Credit: psirt@zte.com.cn
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Zte Zxhn H2640 Firmware | =10.0.0c6_ty | |
| Zte Zxhn H2640 |
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Frequently Asked Questions
What is CVE-2021-21740?
CVE-2021-21740 is an information leak vulnerability in the digital media player (DMS) of ZTE's residential gateway product.
How does CVE-2021-21740 work?
An attacker can insert a USB disk with a symbolic link into the residential gateway, allowing them to access unauthorized directory information through the symbolic link.
What is the severity of CVE-2021-21740?
CVE-2021-21740 has a severity score of 2.4, which is considered low.
Which software versions are affected by CVE-2021-21740?
ZTE ZXHN H2640 Firmware version 10.0.0c6_ty is affected by CVE-2021-21740.
How can I fix CVE-2021-21740?
Update the ZTE ZXHN H2640 Firmware to version 10.0.0c6_ty or higher to fix CVE-2021-21740.
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