CVE-2021-21728
5.3 · MEDIUMOverview
CVE-2021-21728 is a medium-severity vulnerability affecting zte zxa10_c300m_firmware. It was published on April 9, 2021 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
A ZTE product has a configuration error vulnerability. Because a certain port is open by default, an attacker can consume system processing resources by flushing a large number of packets to the port, and successfully exploiting this vulnerability could reduce system processing capabilities. This affects: ZXA10 C300M all versions up to V4.3P8.
Remediation
Check the references section for vendor advisories and patches from zte. Update zxa10_c300m_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| zte | zxa10_c300m_firmware | >= 0, < 4.5 | Affected |
Frequently Asked Questions
What is CVE-2021-21728?
CVE-2021-21728 is a medium-severity vulnerability affecting zte zxa10_c300m_firmware. It was published on April 9, 2021 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
How severe is CVE-2021-21728?
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-21728?
Check the references section for vendor advisories and patches from zte. Update zxa10_c300m_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-21728?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-21728 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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