CVE-2022-27076
Published: 24 March 2022
Summary
CVE-2022-27076 is a critical-severity Command Injection (CWE-77) vulnerability in Tenda M3 Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 5.8% 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 M3 firmware version 1.10 V1.0.0.12(4856) contains a command-injection flaw (CWE-77) in the /goform/delAd endpoint. The vulnerability received a CVSS 3.1 base score of 9.8, reflecting network attack vector, low complexity, and no required credentials or user interaction, with complete loss of confidentiality, integrity, and availability.
An unauthenticated attacker with network access can submit crafted input to the affected endpoint and execute arbitrary operating-system commands on the device. Successful exploitation grants the attacker full control over the router, enabling actions such as configuration changes, traffic interception, or persistence mechanisms.
Public references consist of proof-of-concept reports hosted on GitHub that demonstrate the injection vector; no vendor advisory or official patch information is referenced in the supplied sources. The EPSS score rose from a low baseline to a peak of 0.1908, indicating measurable post-disclosure exploitation interest that warrants renewed attention for exposed devices.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-31616
Vulnerability details
Tenda M3 1.10 V1.0.0.12(4856) was discovered to contain a command injection vulnerability via the component /goform/delAd.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.