CVE-2026-2527: Wavlink WL-WN579A3 login.cgi command injection

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 9.4% 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 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.

Affected products

Wavlink WL-WN579A3: through 2021-02-19

References

https://github.com/MRAdera/IoT-Vuls/blob/main/wavlink/wn579a3/login.md
https://vuldb.com/?ctiid.346115
https://vuldb.com/?id.346115
https://vuldb.com/?submit.748074

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