CVE-2024-38666
Wavlink Wl-Wn533A8 Firmware m33a8.v5030.210505
Raw vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HSummary
CVE-2024-38666 is a critical-severity External Control of System or Configuration Setting (CWE-15) vulnerability in Wavlink Wl-Wn533A8 Firmware. Its CVSS base score is 9.1 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Path Interception by PATH Environment Variable (T1574.007); ranked in the top 3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and AC-6 (Least Privilege) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2024-38666 is an external config control vulnerability in the openvpn.cgi openvpn_client_setup() function of the Wavlink AC3000 router running firmware M33A8.V5030.210505. A specially crafted HTTP request can be used to inject configuration values that result in arbitrary command execution on the device.
An attacker who has already obtained administrative credentials can send an authenticated HTTP request to the affected CGI endpoint and achieve full command execution. The vulnerability carries a CVSS 3.1 score of 9.1, reflecting network-accessible attack vector, low attack complexity, high impact on confidentiality, integrity, and availability, and a scope change that affects the underlying system.
The associated EPSS score remains low, with a current value of 0.0585 and a peak of 0.0606, indicating no significant post-disclosure increase in observed exploitation activity.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-37082
Vulnerability Data
An external config control vulnerability exists in the openvpn.cgi openvpn_client_setup() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to arbitrary command execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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- 4 hardening rules · 2 OS baselines
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Mitigating Controls (NIST 800-53 r5) AI
Enforces approved authorizations for logical access to configuration resources so external parties cannot alter them.
Enforces documented access restrictions on all changes to system configuration, directly blocking unauthorized external control of settings.
Limits privileges to the minimum needed, reducing the set of users who can externally modify configuration.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Hardened configuration baselines and change controls directly limit external manipulation of settings.
Formal change and exception management catches externally driven configuration alterations.
Least-privilege access policies reduce unauthorized external modification of configuration values.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Configuration management directly prevents external tampering with system settings.
Access rights assignment determines who may change system settings.
Privileged access rights reduce the number of users who can alter configuration.
Information access restriction limits who can view or modify configuration data.
Change management enforces controlled, authorized modifications to settings.
Access control policies underpin the technical restrictions on configuration changes.