CVE-2022-46631
Published: 15 December 2022
Summary
CVE-2022-46631 is a critical-severity OS Command Injection (CWE-78) vulnerability in Totolink A7100Ru Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 7.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
TOTOlink A7100RU firmware version V7.4cu.2313_B20191024 contains an OS command injection vulnerability (CWE-78) in the setting/setWiFiSignalCfg function. The flaw is triggered by unsanitized input to the wscDisabled parameter and carries a CVSS 3.1 score of 9.8, reflecting network-accessible exploitation without authentication or user interaction.
An unauthenticated remote attacker can supply a crafted wscDisabled value to execute arbitrary operating-system commands on the device. Successful exploitation grants full control over the router, enabling actions such as configuration changes, traffic interception, or use of the device as an attack pivot.
Public proof-of-concept code demonstrating the injection has been published on GitHub. The associated EPSS score has remained stable near 0.08 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-49435
Vulnerability details
TOTOlink A7100RU V7.4cu.2313_B20191024 was discovered to contain a command injection vulnerability via the wscDisabled parameter in the setting/setWiFiSignalCfg function.
- 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.