CVE-2026-2530: Wavlink WL-WN579A3 wireless.cgi AddMac command injection

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 9.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-02-16 · updated 2026-06-17
Weakness: CWE-74

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.

Affected products

Wavlink WL-WN579A3: through 2021-02-19

References

https://github.com/MRAdera/IoT-Vuls/blob/main/wavlink/wn579a3/AddMac.md
https://vuldb.com/?ctiid.346118
https://vuldb.com/?id.346118
https://vuldb.com/?submit.748077

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