CVE-2022-23900
Published: April 11, 2026
Official Description
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.
Technical Analysis
CVE-2022-23900 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2022-23900 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Exploit & PoC Resources
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-23900 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1