CVE-2021-45740

9.8 criticalEPSS 1.4%

Critical (9.8) in totolink a720r firmware. EPSS 1.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.4% chance of exploitation in the next 30 days; higher than 71% of CVEs (scores of 2026-10-31)
Published: 2022-02-04
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

totolink:a720r_firmware

References

https://github.com/pjqwudi/my_vuln/blob/main/totolink/vuln_4/4.md
https://github.com/pjqwudi/my_vuln/blob/main/totolink/vuln_4/4.md

Check your stack JSON