CVE-2022-31846
Published: 14 June 2022
Summary
CVE-2022-31846 is a high-severity Exposure of Resource to Wrong Sphere (CWE-668) vulnerability in Wavlink Wn535G3 Firmware. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 3.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
A vulnerability tracked as CVE-2022-31846 affects the live_mfg.shtml page in the WAVLINK WN535 G3 router running firmware M35G3R.V5030.180927. The flaw, assigned CWE-668, permits unauthenticated remote attackers to invoke the exec cmd function and retrieve sensitive router information. It carries a CVSS 3.1 base score of 7.5 reflecting network attack vector, low complexity, and no required privileges or user interaction.
An attacker with network access can directly target the affected endpoint to extract configuration or credential data stored on the device, resulting in information disclosure without any prior authentication.
Public references consist of the MITRE CVE record and a GitHub disclosure detailing the live_mfg.shtml endpoint, but contain no vendor advisory, patch information, or mitigation guidance.
The associated EPSS score reached a peak of 0.3820 after disclosure before settling at the current value of 0.2638, indicating a material rise in predicted exploitation interest following publication.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-53202
Vulnerability details
A vulnerability in live_mfg.shtml of WAVLINK WN535 G3 M35G3R.V5030.180927 allows attackers to obtain sensitive router information via execution of the exec cmd function.
- 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 whether organization resources are exposed to external system spheres by permitting or prohibiting their use.
The control ensures information is not released into a security sphere where the recipient lacks matching access authorizations.
The control ensures information resources are not exposed to the incorrect (public) sphere through review and authorization.
Protects against data mining that would expose resources to unauthorized spheres by enforcing detection and controls.
Restricts information flows to ensure resources are not exposed to incorrect or unauthorized spheres.
Controlling internal connections prevents exposure of resources to unintended internal spheres.
Knowing exact processing and storage locations helps avoid exposure of resources to incorrect spheres.
The control prevents exposure of the media resource to the wrong security sphere.