CVE-2022-44251
Published: 23 November 2022
Summary
CVE-2022-44251 is a critical-severity OS Command Injection (CWE-78) vulnerability in Totolink Lr350 Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 5.4% 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 NR1800X firmware version V9.1.0u.6279_B20210910 is affected by a command injection vulnerability (CWE-78) in the setUssd function, where the ussd parameter is processed without adequate sanitization. The flaw received a CVSS 3.1 score of 9.8, reflecting network attack vector, low complexity, and no required privileges or user interaction.
An unauthenticated attacker with network access can supply a crafted ussd value to the affected endpoint and execute arbitrary operating system commands on the device. This grants the ability to read or modify any data, install persistent malware, or disrupt router operation entirely.
The listed references consist of duplicate links to a Notion page documenting the setUssd injection on a related TOTOLINK model; they contain no vendor advisory text, patch identifiers, or mitigation steps. The associated EPSS values (current 0.1447, peak 0.1490) reflect moderate and relatively stable exploitation probability without evidence of a sharp post-disclosure climb.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-47200
Vulnerability details
TOTOLINK NR1800X V9.1.0u.6279_B20210910 contains a command injection via the ussd parameter in the setUssd 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.