CVE-2021-43663 — HIGH (7.5)

Vulnerability Description

totolink EX300_v2 V4.0.3c.140_B20210429 was discovered to contain a command injection vulnerability via the component cloudupdate_check.

CVSS Score

7.5

HIGH

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

Attack Vector

ADJACENT_NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Totolink	Ex300 V2 Firmware	4.0.3c.140_b20210429
Totolink	Ex300 V2	-

Related Weaknesses (CWE)

CWE-77

References

https://github.com/chibataiki/iot-vuls/blob/main/totolink/command-injection1.mdExploitThird Party Advisory
https://github.com/chibataiki/iot-vuls/blob/main/totolink/command-injection1.mdExploitThird Party Advisory

FAQ

What is CVE-2021-43663?

CVE-2021-43663 is a vulnerability with a CVSS score of 7.5 (HIGH). totolink EX300_v2 V4.0.3c.140_B20210429 was discovered to contain a command injection vulnerability via the component cloudupdate_check.

How severe is CVE-2021-43663?

CVE-2021-43663 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-43663?

Check the references section above for vendor advisories and patch information. Affected products include: Totolink Ex300 V2 Firmware, Totolink Ex300 V2.