CVE-2022-34049
Published: 20 July 2022
Summary
CVE-2022-34049 is a medium-severity Files or Directories Accessible to External Parties (CWE-552) vulnerability in Wavlink Wl-Wn530Hg4 Firmware. Its CVSS base score is 5.3 (Medium).
Operationally, ranked in the top 4.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
An access control issue tracked as CVE-2022-34049 affects the Wavlink WN530HG4 router running firmware version M30HG4.V5030.191116. The flaw, assigned CWE-552, permits unauthenticated network access to download log files and configuration data, rated at CVSS 5.3 for limited confidentiality impact without requiring authentication or user interaction.
Remote attackers can exploit the weakness over the network to retrieve sensitive operational and configuration information from the device without any credentials. This exposure can reveal internal network details, credentials, or system state that would otherwise remain protected.
The EPSS score for the vulnerability rose from a low baseline after the 2022 disclosure to a peak of 0.6399 on 2025-01-22 before receding to the current value of 0.1923, indicating a period of increased exploitation interest well after initial publication.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-37079
Vulnerability details
An access control issue in Wavlink WN530HG4 M30HG4.V5030.191116 allows unauthenticated attackers to download log files and configuration data.
- 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.