Auth bypass in Wavlink Wl-Wn531g3
CVE-2021-44259
A vulnerability is in the 'wx.html' page of the WAVLINK AC1200, version WAVLINK-A42W-1.27.6-20180418, which can allow a remote attacker to access this page without any authentication. When an unauthorized user accesses this page directly, it connects to this device as a friend of the device owner.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.020 (79.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Wavlink Wl-Wn531g3
- Wavlink Wl-Wn531g3 Firmware — versions a42w-1.27.6-20180418
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/zer0yu/CVE_Request/blob/master/WAVLINK/WAVLINK_AC1200_unauthorized_a… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-44259?
- CVE-2021-44259 is a critical-severity vulnerability in Wavlink Wl-Wn531g3, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2022-03-17.
- How severe is CVE-2021-44259?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-44259 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.