What’s Vulnerable › Vulnerabilities
CVE-2021-21723
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-01-26 · updated 2026-06-17
- Weakness: CWE-401
Description
Some ZTE products have a DoS vulnerability. Due to the improper handling of memory release in some specific scenarios, a remote attacker can trigger the vulnerability by performing a series of operations, resulting in memory leak, which may eventually lead to device denial of service. This affects: ZXR10 9904, ZXR10 9908, ZXR10 9916, ZXR10 9904-S, ZXR10 9908-S; all versions up to V1.01.10.B12.
Affected products
- ZTE Zxr10 9904-S Firmware: through v1.01.10.b12
- ZTE Zxr10 9904 Firmware: through v1.01.10.b12
- ZTE Zxr10 9908-S Firmware: through v1.01.10.b12
- ZTE Zxr10 9908 Firmware: through v1.01.10.b12
- ZTE Zxr10 9916 Firmware: through v1.01.10.b12
References
- http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014424
- http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014424
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