Critical severity9.8NVD Advisory· Published Feb 4, 2022· Updated Jun 17, 2026

CVE-2021-45740

Description

TOTOLINK A720R v4.1.5cu.470_B20200911 was discovered to contain a stack overflow in the setWiFiWpsStart function. This vulnerability allows attackers to cause a Denial of Service (DoS) via the pin parameter.

Affected products

Totolink/A720r Firmware
cpe:2.3:o:totolink:a720r_firmware:4.1.5cu.470_b20200911:*:*:*:*:*:*:*
Totolink/A720Rcpe-rescue2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: v4.1.5cu.470_B20200911

Patches

Vulnerability mechanics

References

github.com/pjqwudi/my_vuln/blob/main/totolink/vuln_4/4.mdnvdExploitThird Party Advisory

News mentions

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