CVE-2021-45740 — CRITICAL (9.8)

Vulnerability 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.

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Totolink	A720R Firmware	4.1.5cu.470_b20200911
Totolink	A720R	-

References

https://github.com/pjqwudi/my_vuln/blob/main/totolink/vuln_4/4.mdExploitThird Party Advisory
https://github.com/pjqwudi/my_vuln/blob/main/totolink/vuln_4/4.mdExploitThird Party Advisory

FAQ

What is CVE-2021-45740?

CVE-2021-45740 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 par...

How severe is CVE-2021-45740?

CVE-2021-45740 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-45740?

Check the references section above for vendor advisories and patch information. Affected products include: Totolink A720R Firmware, Totolink A720R.