CVE-2022-35536
Published: 10 August 2022
Summary
CVE-2022-35536 is a critical-severity an unspecified weakness vulnerability in Wavlink Wn572Hp3 Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 16.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2022-35536 affects the qos.cgi component in WAVLINK router models WN572HP3, WN533A8, WN530H4, WN535G3, and WN531P3. The CGI script performs no input filtering on the qos_bandwith and qos_dat parameters, enabling command injection when the /qos.shtml page is accessed.
An unauthenticated remote attacker can supply crafted values for these parameters over the network to execute arbitrary commands on the device. The vulnerability carries a CVSS 3.1 score of 9.8, reflecting full confidentiality, integrity, and availability impact without requiring authentication or user interaction.
The two provided references consist of GitHub repositories that document the command-injection flaw but contain no information on vendor patches, firmware updates, or other mitigations.
EPSS for the CVE rose from a low baseline to a peak of 0.0876 on 2025-01-22 before receding to its current value of 0.0187.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-38423
Vulnerability details
WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 qos.cgi has no filtering on parameters: qos_bandwith and qos_dat, which leads to command injection in page /qos.shtml.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.