Vulnerability · Published Feb 16, 2026 · Assigned by VulDB

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

Medium 6.3

In plain English

A medium-severity command injection in WL-WN579A3 from Wavlink. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 9.4% (higher than 95% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)9.4%top 4.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
Wavlink	WL-WN579A3	20210219

Weakness: CWE-77, CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References

VDB-346115 | Wavlink WL-WN579A3 login.cgi command injection vdb-entry, technical-description
VDB-346115 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #748074 | Wavlink WN579A3 20210219 Command Injection third-party-advisory
https://github.com/MRAdera/IoT-Vuls/blob/main/wavlink/wn579a3/login.md exploit