CVE-2022-44356
Published: 29 November 2022
Summary
CVE-2022-44356 is a high-severity Files or Directories Accessible to External Parties (CWE-552) vulnerability in Wavlink Wl-Wn531G3 Firmware. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 2.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2022-44356 affects the WAVLINK Quantum D4G wireless router model WL-WN531G3 running firmware versions M31G3.V5030.201204 and M31G3.V5030.200325. The vulnerability is an access-control weakness, tracked under CWE-552, that permits unauthenticated network access to sensitive files. It carries a CVSS 3.1 base score of 7.5 reflecting network attack vector, low complexity, and high confidentiality impact.
An attacker with network reachability to the device can directly retrieve configuration data and log files without authentication or user interaction, exposing administrative credentials, network settings, and operational logs. The EPSS score of 0.47 indicates moderate exploitation probability that has remained stable since disclosure.
Public references consist of a technical write-up hosted on GitHub that details the affected endpoints and reproduction steps; no vendor advisory or firmware patch addressing the issue is referenced in the available sources.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-47301
Vulnerability details
WAVLINK Quantum D4G (WL-WN531G3) running firmware versions M31G3.V5030.201204 and M31G3.V5030.200325 has an access control issue which allows unauthenticated attackers to download configuration data and log files.
- 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.
Controls on authorized publication limit files and directories with nonpublic data from becoming accessible to external parties.
Controlling and documenting P2P file sharing prevents files and directories from being made accessible to external parties for unauthorized distribution.
Identifying and documenting file and directory locations allows restriction of access to external parties.
Protecting backup files ensures they are not accessible to external parties or unauthorized spheres.
Sanitizing equipment before off-site maintenance reduces the risk of files or directories containing sensitive data becoming accessible to external parties.
Policy restricts media access to authorized parties only, preventing exposure of resources to external or unauthorized actors.
Media access restrictions prevent files or directories from being accessible to external parties.
Employing and evaluating controls at documented alternate sites makes files and directories less likely to be accessible to external parties through physical or environmental weaknesses.