CVE-2022-31446
Published: 14 June 2022
Summary
CVE-2022-31446 is a critical-severity OS Command Injection (CWE-78) vulnerability in Tendacn Ac18 Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 4.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
Tenda AC18 router firmware versions V15.03.05.19 and V15.03.05.05 contain a remote code execution vulnerability in the handling of the Mac parameter at the ip/goform/WriteFacMac endpoint. The flaw is tracked as CVE-2022-31446, carries a CVSS v3.1 score of 9.8, and is associated with CWE-78 improper neutralization of special elements used in an OS command.
An unauthenticated attacker with network access can supply a crafted Mac value to the endpoint and execute arbitrary commands on the device, resulting in full control over confidentiality, integrity, and availability without any user interaction or credentials.
The two reference URLs point to the same public GitHub disclosure containing proof-of-concept details but do not describe vendor patches or mitigation steps. The EPSS score has remained flat at a peak of 0.1770 with no material rise after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-52916
Vulnerability details
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.
- 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.