OS Command Injection in Wavlink WL-WN530BE2-A - Login Processing Component
CVE-2026-110957

10CRITICAL

Key Information:

Vendor

Wavlink

Status
Wl-wn530be2-a
Vendor
CVE Published:
15 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-110957?

A vulnerability exists in the Wavlink WL-WN530BE2-A's login processing component, specifically in the api.cgi file's function sub_12580. This flaw allows attackers to manipulate the REMOTE_ADDR argument, leading to remote command injection vulnerabilities. This can potentially compromise the affected system by executing arbitrary commands. The vendor has addressed this issue in the firmware update 2026-09-24-841a51c6d5_tclinux.bin, which prevents the exploitation by ensuring that the api=info&client=app handler no longer builds a shell command. The new login script now utilizes a more secure execution method that checks argument lengths to enhance security.

Affected Version(s)

WL-WN530BE2-A M30BE2_V250604

WL-WN530BE2-A 2026-09-24-841a51c6d5_tclinux.bin

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-110957 - Proof of Concept

References

https://vuldb.com/vuln/420570
vdb-entrytechnical-description
https://vuldb.com/vuln/420570/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-110957
third-party-advisory

CVSS V4

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

yyjy (VulDB User)
VulDB CNA Team
.