Login Request a demo
Critical severity · published Feb 16, 2026
CVE-2026-2527
Wavlink WL-WN579A3 login.cgi command injection
9.8
CVSS
9.4%
EPSS
No
On KEV
Description
A vulnerability was determined in Wavlink WL-WN579A3 up to 20210219. Affected is an unknown function of the file /cgi-bin/login.cgi. Executing a manipulation of the argument key can lead to command injection. The attack may be launched 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)9.4% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WL
WL-WN579A3 · Wavlink
20210219 · source: vendor
WF
Wl-wn579a3 Firmware · Wavlink
through 2021-02-19 · source: NVD
Affected product
WL
WL-WN579A3
Wavlink
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2527
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-2527
Exploit
https://github.com/MRAdera/IoT-Vuls/blob/main/wavlink/wn579a3/login.md
Permissions Required
https://vuldb.com/?ctiid.346115
Third Party Advisory
https://vuldb.com/?id.346115
Third Party Advisory
https://vuldb.com/?submit.748074
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