High severity · published Feb 16, 2026
CVE-2026-2530
Wavlink WL-WN579A3 wireless.cgi AddMac command injection
8.8
CVSS
9.2%
EPSS
No
On KEV
Description
A weakness has been identified in Wavlink WL-WN579A3 up to 20210219. This affects the function AddMac of the file /cgi-bin/wireless.cgi. This manipulation of the argument macAddr causes command injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. 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:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)9.2% · 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
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2530
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-2530
Exploit
https://github.com/MRAdera/IoT-Vuls/blob/main/wavlink/wn579a3/AddMac.md
Permissions Required
https://vuldb.com/?ctiid.346118
Third Party Advisory
https://vuldb.com/?id.346118
Third Party Advisory
https://vuldb.com/?submit.748077
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