CVE-2022-23900
Published: 07 April 2022
Summary
CVE-2022-23900 is a critical-severity OS Command Injection (CWE-78) vulnerability in Wavlink Wl-Wn531P3 Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 9.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
The vulnerability CVE-2022-23900 is a command injection flaw, tracked as CWE-78, in the web API of the Wavlink WL-WN531P3 router on firmware version M31G3.V5030.201204. Untrusted input supplied to the /cgi-bin/adm.cgi endpoint is passed directly to an operating-system command without sanitization, allowing arbitrary code execution. The issue received a CVSS 3.1 base score of 9.8.
An unauthenticated attacker with network access can exploit the flaw by submitting a malicious POST request to the affected CGI endpoint. Successful exploitation grants remote code execution with full read, write, and execute privileges on the device, enabling complete compromise of the router without any user interaction or credentials.
The references consist of a technical write-up describing the injection vector and the vendor’s product page; neither source provides information on patches, firmware updates, or other mitigations. The EPSS score has remained flat at 0.0585 with no material rise after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-28822
Vulnerability details
A command injection vulnerability in the API of the Wavlink WL-WN531P3 router, version M31G3.V5030.201204, allows an attacker to achieve unauthorized remote code execution via a malicious POST request through /cgi-bin/adm.cgi.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.