CVE-2022-48122
Published: 20 January 2023
Summary
CVE-2022-48122 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 firmware version V7.4cu.2313_B20191024 contains an OS command injection vulnerability (CWE-78) in the setting/delStaticDhcpRules function. The flaw is triggered by unsanitized input to the dayvalid parameter, allowing arbitrary command execution on the device.
Unauthenticated attackers with network access can exploit the issue remotely without user interaction. Successful exploitation grants full control over the router, enabling impacts to confidentiality, integrity, and availability consistent with the CVSS 9.8 rating.
Public references consist of GitHub repositories that document the vulnerability and likely include proof-of-concept details, but no vendor advisories, patches, or mitigation guidance are referenced in the available information. The EPSS score has remained at 0.1490 with no indicated rise from a lower baseline.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-50834
Vulnerability details
TOTOlink A7100RU V7.4cu.2313_B20191024 was discovered to contain a command injection vulnerability via the dayvalid parameter in the setting/delStaticDhcpRules 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.