What’s Vulnerable › Vulnerabilities

CVE-2018-14557

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-04-25 · updated 2026-06-17
• Weakness: CWE-119

Description

An issue was discovered on Tenda AC7 devices with firmware through V15.03.06.44_CN(AC7), AC9 devices with firmware through V15.03.05.19(6318)_CN(AC9), and AC10 devices with firmware through V15.03.06.23_CN(AC10). A buffer overflow vulnerability exists in the router's web server (httpd). When processing the page parameters for a post request, the value is directly written with sprintf to a local variable placed on the stack, which overrides the return address of the function, a causing buffer overflow.

Affected products

• Tenda AC10: through 15.03.06.23_cn
• Tenda AC7: through 15.03.06.44_cn
• Tenda AC9: through 15.03.05.19\(6318\)_cn

References

• https://github.com/zsjevilhex/iot/blob/master/route/tenda/tenda-03/Tenda.md
• https://github.com/zsjevilhex/iot/blob/master/route/tenda/tenda-03/Tenda.md

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