CVE-2023-36953
Published: 16 October 2023
Summary
CVE-2023-36953 is a critical-severity Command Injection (CWE-77) vulnerability in Totolink Cp300\+ Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 12.4% 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 CP300+ routers running firmware V5.2cu.7594_B20200910 and earlier contain a command-injection vulnerability tracked as CVE-2023-36953. The flaw is classified under CWE-77 and carries a CVSS 3.1 base score of 9.8, reflecting network-accessible, unauthenticated exploitation that can fully compromise confidentiality, integrity, and availability.
An attacker with no credentials can send specially crafted requests over the network to execute arbitrary operating-system commands on the device. Successful exploitation grants the attacker complete control of the router, enabling actions such as traffic interception, configuration changes, or use of the device as a pivot point into attached networks.
Public references consist of technical write-ups on GitHub that demonstrate the injection vector; no vendor advisory or firmware patch is referenced in the available sources. The EPSS score rose sharply from a low baseline to a peak of 0.5106 in January 2025 before receding to its current value of 0.0336, indicating a period of heightened exploitation interest after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-40873
Vulnerability details
TOTOLINK CP300+ V5.2cu.7594_B20200910 and before is vulnerable to command injection.
- 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.