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Vulnerability · Published Oct 15, 2026 · Assigned by VulDB

CVE-2026-110957Wavlink WL-WN530BE2-A Login Processing api.cgi sub_12580 os command injection

Critical 10.0

In plain English

A critical-severity OS command injection in WL-WN530BE2-A from Wavlink. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 3.1% (higher than 88% of all known vulnerabilities).

Severity (CVSS 3.1)10.0Critical
Exploit odds (30 days)3.1%top 12.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability has been found in Wavlink WL-WN530BE2-A up to M30BE2_V250604. The affected element is the function sub_12580 of the file api.cgi of the component Login Processing. The manipulation of the argument REMOTE_ADDR leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2026-09-24-841a51c6d5_tclinux.bin is sufficient to fix this issue. You should upgrade the affected component. The vendor confirms: "We confirm the finding, and it has already been addressed. In the current firmware the api=info&client=app handler no longer builds a shell command: the login script is now invoked through an argument vector (execvp) instead of system(), and the client address is length-limited and null-checked."

Affected products (as reported)

VendorProductVersions
Wavlink WL-WN530BE2-A M30BE2_V250604

Weakness: CWE-78, CWE-77 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C

References