CVE-2023-37148
Published: 07 July 2023
Summary
CVE-2023-37148 is a critical-severity Command Injection (CWE-77) vulnerability in Totolink Lr350 Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 19.1% 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 LR350 firmware version V9.3.5u.6369_B20220309 contains a command injection vulnerability, tracked as CVE-2023-37148 and assigned CWE-77, in the setUssd function through the ussd parameter. The flaw received a CVSS 3.1 score of 9.8, reflecting network-accessible exploitation with no required authentication or user interaction and full impact on confidentiality, integrity, and availability.
An unauthenticated remote attacker can supply a crafted ussd value to the affected function and execute arbitrary operating-system commands on the device, enabling complete takeover of the router.
The two provided references consist of public GitHub disclosures that detail the vulnerability but contain no information on vendor patches, firmware updates, or recommended mitigations.
EPSS for this CVE rose from a low baseline after the July 2023 disclosure to a peak of 0.2744 on 2025-01-22 before receding to the current value of 0.0140, indicating a later surge in exploitation interest that warrants renewed attention.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-41068
Vulnerability details
TOTOLINK LR350 V9.3.5u.6369_B20220309 was discovered to contain a command injection vulnerability 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
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.