What’s Vulnerable › Vulnerabilities

CVE-2021-21743

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-10-20 · updated 2026-06-17
• Weakness: CWE-74

Description

ZTE MF971R product has a CRLF injection vulnerability. An attacker could exploit the vulnerability to modify the HTTP response header information through a specially crafted HTTP request.

Affected products

• MF971R: v1.0.0b05, 1v1.0.0b06, 2v1.0.0b03, s2v1.0.0b03, sv1.0.0b05

References

• https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1019764
• https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1019764

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