10.0
CRITICAL CVSS 3.1
CVE-2026-120276
WAVLINK WN536AX6-A Web Management ioos sub_416760 os command injection
Description

A weakness has been identified in WAVLINK WN536AX6-A V260507_2.0.0. This vulnerability affects the function sub_416760 of the file /bin/ioos of the component Web Management Interface. This manipulation of the argument group_name causes os command injection. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure.

INFO

Published Date :

Nov. 2, 2026, 12:18 a.m.

Last Modified :

Nov. 2, 2026, 12:18 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-120276 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Wavlink wn536ax6-a
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 HIGH [email protected]
CVSS 3.1 CRITICAL [email protected]
CVSS 4.0 CRITICAL [email protected]
Solution
Update the device firmware to patch the OS command injection vulnerability.
  • Apply firmware updates from the vendor.
  • Validate system configuration for security.
  • Restrict access to the Web Management Interface.
References to Advisories, Solutions, and Tools
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-120276 is associated with the following CWEs:

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-120276 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-120276 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Nov. 02, 2026

    Action Type Old Value New Value
    Added Description A weakness has been identified in WAVLINK WN536AX6-A V260507_2.0.0. This vulnerability affects the function sub_416760 of the file /bin/ioos of the component Web Management Interface. This manipulation of the argument group_name causes os command injection. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    Added CVSS V2 (AV:N/AC:L/Au:N/C:C/I:C/A:C)
    Added CWE CWE-78
    Added CWE CWE-77
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/120xxx/CVE-2026-120276.json">CVE-2026-120276</a>
    Added Reference https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK_WN536AX6-A%20Router/WAVLINK_WN536AX6-A_openvpn_cli_group_command_injection.md
    Added Reference https://vuldb.com/cve/CVE-2026-120276
    Added Reference https://vuldb.com/submit/919502
    Added Reference https://vuldb.com/vuln/429620
    Added Reference https://vuldb.com/vuln/429620/cti
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.