CVE-2023-27229
Published: 28 March 2023
Summary
CVE-2023-27229 is a critical-severity Command Injection (CWE-77) vulnerability in Totolink A7100Ru Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 10.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
TOTOlink A7100RU firmware version V7.4cu.2313_B20191024 contains a command injection vulnerability (CWE-77) that can be triggered through the upBw parameter in the /setting/setWanIeCfg endpoint. The flaw received a CVSS 3.1 score of 9.8, reflecting network-accessible attack vectors that require no authentication or user interaction.
An unauthenticated remote attacker can supply crafted input to the affected parameter and execute arbitrary operating-system commands on the device. Successful exploitation grants full control over the router, allowing confidentiality, integrity, and availability impacts.
The EPSS score for this CVE rose from a low baseline to a peak of 0.3113 on 2025-01-22 before receding to the current value of 0.0435, indicating a period of increased exploitation interest after disclosure. Public references consist of technical proof-of-concept material hosted on GitHub but contain no vendor advisory or patch information.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-31009
Vulnerability details
TOTOlink A7100RU V7.4cu.2313_B20191024 was discovered to contain a command injection vulnerability via the upBw parameter at /setting/setWanIeCfg.
- 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.