PT-2022-12382 · Totolink · Totolink A720R

Published 2022-02-04 · Updated 2023-08-08 · CVE-2021-45740

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions TOTOLINK A720R version 4.1.5cu.470 B20200911

Description A stack overflow was discovered in the setWiFiWpsStart function, allowing attackers to cause a Denial of Service (DoS) via the pin parameter.

Recommendations For TOTOLINK A720R version 4.1.5cu.470 B20200911, as a temporary workaround, consider disabling the setWiFiWpsStart function until a patch is available. Avoid using the pin parameter in the affected function to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

CVE-2021-45740

Affected Products

Totolink A720R

References · 3

• 🔥❌ https://github.com/pjqwudi/my_vuln/blob/main/totolink/vuln_4/4.md · Exploit, Deleted
• https://nvd.nist.gov/vuln/detail/CVE-2021-45740 · Security Note
• https://osv.dev/vulnerability/CVE-2021-45740 · Vendor Advisory