CVE-2021-33962

An Lianbao Wf Firmware 1 vulnerability

CVSS

9.8

EPSS

3.7%

EPSS pct

89th

Exploited

No known

China Mobile An Lianbao WF-1 router v1.0.1 is affected by an OS command injection vulnerability in the web interface /api/ZRUsb/pop_usb_device component.

Affected vendor

Chinamobileltd

Affected product

An Lianbao Wf Firmware 1

CVSS vector

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

Weakness type (CWE)

CWE-78 — OS Command Injection

Published

2022-01-14

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2021-33962

Confirm whether Chinamobileltd An Lianbao Wf Firmware 1 is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-33962.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-33962

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-33962 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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