RCE in Wavlink Wl-Wn578w2
CVE-2026-4544
A vulnerability was determined in Wavlink WL-WN578W2 221110. This affects an unknown function of the file /cgi-bin/login.cgi of the component POST Request Handler. Executing a manipulation of the argument homepage/hostname/login_page can lead to cross site scripting. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 2.4 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (33.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.002
Affected products
- Wavlink Wl-Wn578w2 — versions 221110
- Wavlink Wl-Wn578w2 Firmware — versions 221110
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/Litengzheng/vul_db/blob/main/WL-WN578W2/vul_6/README.md (related, Exploit, Third Party Advisory)
- github.com/Litengzheng/vul_db/blob/main/WL-WN578W2/vul_7/README.md (Exploit, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2026-4544?
- CVE-2026-4544 is a low-severity vulnerability in Wavlink Wl-Wn578w2, classified under Cross-site Scripting. CVSS score: 2.4/10. Published 2026-03-22.
- How severe is CVE-2026-4544?
- Low severity. CVSS v3 base score is 2.4 out of 10.