CVE-2022-47853
Published: 17 January 2023
Summary
CVE-2022-47853 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 5.3% 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 running firmware V7.4cu.2313_B20191024 contains a command-injection vulnerability (CWE-78) in its httpd service. The flaw carries a CVSS 3.1 score of 9.8 and permits unauthenticated network attackers to execute arbitrary commands on the device.
An attacker can submit a specially constructed payload to the web server and obtain a stable root shell, giving full control of the router without any prior authentication or user interaction.
The two supplied references point to public proof-of-concept material but contain no vendor advisory, patch information, or mitigation guidance. The associated EPSS score has remained flat at 0.1490 with no material increase after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-50610
Vulnerability details
TOTOlink A7100RU V7.4cu.2313_B20191024 is vulnerable to Command Injection Vulnerability in the httpd service. An attacker can obtain a stable root shell through a specially constructed payload.
- 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.