What’s Vulnerable › Vulnerabilities

CVE-2021-43662

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-03-31 · updated 2026-06-17
• Weakness: CWE-770

Description

totolink EX300_v2, ver V4.0.3c.140_B20210429 and A720R ,ver V4.1.5cu.470_B20200911 have an issue which causes uncontrolled resource consumption.

Affected products

• TOTOLINK A720R: 4.1.5cu.470_b20200911
• TOTOLINK Ex300 V2 Firmware: 4.0.3c.140_b20210429

References

• https://github.com/chibataiki/iot-vuls/blob/main/totolink/dos.md
• https://github.com/chibataiki/iot-vuls/blob/main/totolink/dos.md

Get alerted when CVE-2021-43662 or the next vulnerability affects your stack