CVE-2022-31446
Published: April 11, 2026
Official Description
Tenda AC18 router V15.03.05.19 and V15.03.05.05 was discovered to contain a remote code execution (RCE) vulnerability via the Mac parameter at ip/goform/WriteFacMac.
Risk Analysis
The Tenda AC18 router is vulnerable to remote code execution via the Mac parameter in the ip/goform/WriteFacMac endpoint. This flaw allows attackers to execute arbitrary commands on the router, posing a critical risk due to confirmed exploitation.
This vulnerability is actively being exploited in the wild, indicating a high and immediate threat. The flaw is remotely exploitable via a specific URL parameter, allowing attackers to compromise the router without direct access.
Users of Tenda AC18 routers should update their firmware to the latest available version. Isolate the router from direct internet exposure where possible and implement strong network segmentation.
Technical Analysis
CVE-2022-31446 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-2022-31446 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-2022-31446 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