CVE-2024-40085
Published: 21 October 2024
Summary
CVE-2024-40085 is a critical-severity Classic Buffer Overflow (CWE-120) vulnerability in Vilo (inferred from references). Its CVSS base score is 9.6 (Critical).
Operationally, ranked in the top 8.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
A buffer overflow vulnerability exists in the local_app_set_router_wan function of the Vilo 5 Mesh WiFi System in versions up to and including 5.16.1.33. The flaw is triggered when the pppoe_username and pppoe_password fields exceed 128 bytes, and it is tracked under CWE-120 with a CVSS 3.1 score of 9.6.
Remote unauthenticated attackers on the adjacent network can supply oversized credentials to the affected function and achieve arbitrary code execution with high impact on confidentiality, integrity, and availability. No authentication or user interaction is required, and the attack can cross security boundaries within the mesh network.
The provided references point to the vendor site and a detailed technical write-up from security researchers, but contain no explicit statements on patches or mitigation steps. The associated EPSS score has remained flat at 0.0726 with no observed increase after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-38407
Vulnerability details
A Buffer Overflow vulnerability in the local_app_set_router_wan function of Vilo 5 Mesh WiFi System <= 5.16.1.33 allows remote, unauthenticated attackers to execute arbitrary code via pppoe_username and pppoe_password fields being larger than 128 bytes in length.
- 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.
Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.