Medium 4.3Published Apr 19, 2026

CVE-2026-6559Wavlink WL-WN579A3 login.cgi sub_401F80 cross site scripting

Updated under an hour ago (Oct 28, 2026, 3:50 AM ET)

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It affects Wavlink WL-WN579A3. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Wavlink WL-WN579A3

Exploited in the last 30 days

A weakness has been identified in Wavlink WL-WN579A3 220323. This affects the function sub_401F80 of the file /cgi-bin/login.cgi. This manipulation of the argument Hostname causes cross site scripting. Remote exploitation of the attack is possible. Upgrading the affected component is recommended. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

CVSS: 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:X/RL:O/RC:C
Weakness (CWE): CWE-79, CWE-94
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Apr 20, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Wavlink WL-WN579A3 wavlink:wl-wn579a3_firmware	220323	CNA record

References

References

https://vuldb.com/vuln/358196	vdb-entry, technical-description
https://vuldb.com/vuln/358196/cti	signature, permissions-required
https://vuldb.com/submit/785303	third-party-advisory
https://github.com/Litengzheng/vul_db/blob/main/WL-WN579A3/vul_16/README.md	broken-link
https://dl.wavlink.com/firmware/RD/WINSTAR_WN579A3-A-2026-03-10-94f93d4-WO-mt7628-squashfs-sysupgrade.bin	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.