Chengdu Feiyuxing Technology VW2100/VEC10GP Weixin Auth Endpoint webserver handle_wechat_cn_wifi os command injection
VW2100 and VEC10GP devices on firmware build B-MB3W202-210825-r11775 are affected, and other VROS builds sharing the same webserver CGI may be too. No fixed version is listed.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- No fix listed
- Who is exposed
- Not reported
Do first: Workaround: Restrict the web admin port to the LAN.
- Last modified
- FIRST's estimate of the chance attackers exploit it in the next 30 days, updated daily.What do these mean? →
- 2.79% · 86th percentile
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 32/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Unclear
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
A command injection flaw in the Weixin Auth Endpoint of Chengdu Feiyuxing Technology VW2100 and VEC10GP devices lets an attacker run arbitrary operating system commands on the device. The attack can be carried out remotely over the network without logging in.
Read the original description
A vulnerability was found in Chengdu Feiyuxing Technology VW2100 and VEC10GP 1.0 B-MB3W202-210825-r11775. This impacts the function handle_wechat_cn_wifi of the file var/html/webserver of the component Weixin Auth Endpoint. The manipulation of the argument extend results in os command injection. The attack can be executed remotely. 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.
cve.now Index
- Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
- Exposure17/25No login or user action needed, reachable over the network without a login · Unknown: Advisories don't say whether default setups are affected
- Reach?/20Unknown. No tracked technology or package matched
- Severity10/10CVSS 10.0
- No patch5/5No patch listed yet
What would change the score
- Would score about 77 if added to CISA KEV
- Would score about 72 if CISA's SSVC rates exploitation active
- Would score about 37 if advisories confirm default setups are exposed
What to do
Workaround: Restrict the web admin port to the LAN.
Timeline
- CVE published
- First seen by cve.now
- Posted on X by cve.now
Affected versions
- Chengdu Feiyuxing Technology VW2100
1.0 B-MB3W202-210825-r11775
- Chengdu Feiyuxing Technology VEC10GP
1.0 B-MB3W202-210825-r11775
Evidence 6
- Advisory
- Advisory
- Advisory
- Advisory
- Exploit
- Repository
Corrections
None so far.
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Questions about CVE-2026-124580
Is CVE-2026-124580 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
What does this mean?
The weixin_auth handler in the web server passes input into an operating system command without proper handling. This lets remote code execution as root happen without logging in.Source: github.com
Which versions are affected by CVE-2026-124580?
VW2100: version 1.0 B-MB3W202-210825-r11775. VEC10GP: version 1.0 B-MB3W202-210825-r11775.Source: cve.now feed data
Am I affected, and how do I check?
The analyzed build is B-MB3W202-210825-r11775 on the VW2100 and VEC10GP. Other VROS builds sharing the same webserver CGI may also be affected, so compare your firmware build string against the analyzed one.Source: github.com
How do I fix CVE-2026-124580?
No fixed firmware version is listed in the checked facts, so no upgrade target is confirmed. Check the vendor for an updated build.Source: github.com
What if there's no patch?
Restrict the web admin port to the LAN. This limits who can reach the vulnerable web interface while no fix is available.Source: github.com