What’s Vulnerable › Vulnerabilities

CVE-2020-6879

• Severity: low (CVSS 3.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-11-19 · updated 2026-06-17
• Weakness: CWE-20

Description

Some ZTE devices have input verification vulnerabilities. The devices support configuring a static prefix through the web management page. The restriction of the front-end code can be bypassed by constructing a POST request message and sending the request to the creation of a static routing rule configuration interface. The WEB service backend fails to effectively verify the abnormal input. As a result, the attacker can successfully use the vulnerability to tamper parameter values. This affects: ZXHN Z500 V1.0.0.2B1.1000 and ZXHN F670L V1.1.10P1N2E. This is fixed in ZXHN Z500 V1.0.1.1B1.1000 and ZXHN F670L V1.1.10P2N2.

Affected products

• ZTE Zxhn F670L Firmware: v1.1.10p1n2e
• ZTE Zxhn Z500 Firmware: v1.0.0.2b1.1000

References

• http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1013922
• http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1013922

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