CVE-2021-33963

Name: CVE-2021-33963
Creator: NVD / NIST
Published: 2022-01-15T10:15:07.747+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.07%

Last modified Jun 17, 2026

CVE-2021-33963 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. China Mobile An Lianbao WF-1 v1.0.1 router web interface through /api/ZRMacClone/mac_addr_clone receives parameters by POST request, and the parameter macType has a command injection vulnerability. An attacker can use the vulnerability to execute remote commands.. EPSS estimates a 3.07% chance of exploitation in the next 30 days.

Description

China Mobile An Lianbao WF-1 v1.0.1 router web interface through /api/ZRMacClone/mac_addr_clone receives parameters by POST request, and the parameter macType has a command injection vulnerability. An attacker can use the vulnerability to execute remote commands.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

3.07%

86.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-77

Affected Software

Vendor	Product	Versions
Chinamobile	An Lianbao Wf-1 Firmware	1.0.1

References

http://iot.10086.cn/?l=en-usProduct
https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/China%20Mobile%20An%20Lianbao%20WF-1%20router%20Command%20Injection9.mdBroken Link, Third Party Advisory
https://www.cnvd.org.cn/flaw/show/CNVD-2021-03520Third Party Advisory
https://www.ebuy7.com/item/china-mobile-wireless-router-qualcomm-qiki-wifi6-routing-mesh-network-home-5g-dual-frequency-double-gigabit-port-wall-wall-high-speed-%E2%80%8B%E2%80%8Bhigh-power-enhanced-dormitory-students-an-lianbao-wf-1-628692180620Broken Link, Third Party Advisory
http://iot.10086.cn/?l=en-usProduct
https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/China%20Mobile%20An%20Lianbao%20WF-1%20router%20Command%20Injection9.mdBroken Link, Third Party Advisory
https://www.cnvd.org.cn/flaw/show/CNVD-2021-03520Third Party Advisory
https://www.ebuy7.com/item/china-mobile-wireless-router-qualcomm-qiki-wifi6-routing-mesh-network-home-5g-dual-frequency-double-gigabit-port-wall-wall-high-speed-%E2%80%8B%E2%80%8Bhigh-power-enhanced-dormitory-students-an-lianbao-wf-1-628692180620Broken Link, Third Party Advisory

Timeline

Published: Jan 15, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-33963?

How severe is CVE-2021-33963?

CVE-2021-33963 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.07% probability of exploitation in the next 30 days.

How do I fix CVE-2021-33963?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-33963?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST