CVE-2026-124585: Chengdu Feiyuxing Technology VW2100/VEC10GP Web Administration webserver add_expmac os command injection

Is it exploited?

Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of 10 Nov 2026. If CISA adds it, this page shows it as known exploited.

How likely is exploitation in the next 30 days?

2.2%

EPSS score, percentile 82.8 of all scored records. A probability estimated by FIRST, not a report of exploitation.

CISA's SSVC assessment in the CVE record lists exploitation as poc.

How severe?

9.4 Critical

CVSS v4.0 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

No patch or vendor advisory is listed in the CVE record. Check Chengdu Feiyuxing Technology's advisories.

A public exploit is linked in the references.

Which versions are affected?

Affected

• 1.0 B-MB3W202-210825-r11775
• 1.0 B-MB3W202-210825-r11775

Versions by product

Source: CISA KEV 2026.11.10, as of 10 Nov 2026; FIRST EPSS, as of 12 Nov 2026; CVE List, as of 13 Nov 2026. About the data.

Description

Chengdu Feiyuxing Technology VW2100/VEC10GP Web Administration webserver add_expmac os command injection

A vulnerability was found in Chengdu Feiyuxing Technology VW2100 and VEC10GP 1.0 B-MB3W202-210825-r11775. This issue affects the function add_expmac of the file var/html/webserver of the component Web Administration Interface. The manipulation of the argument mac results in os command injection. The attack may be performed from remote. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Source: CVE List, as of 13 Nov 2026. About the data.

What to do

Advisories and patches

No patch, vendor advisory or mitigation is listed in the CVE record. Check Chengdu Feiyuxing Technology's own security advisories for a fix, and compare your version with the affected versions below.

A public exploit is linked in the references.

This summary is based on the CVE record as of 13 Nov 2026. Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Source: CVE List, as of 13 Nov 2026. About the data.

Timeline