CVE-2026-120277

Description

A security vulnerability has been detected in WAVLINK WN536AX6-A V260507_2.0.0. This issue affects the function sub_41a1d8 of the file /bin/ioos of the component WireGuard CLI Group Handler. Such manipulation of the argument group_name leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure.

Overview

State: PUBLISHED
Assigner (CNA): VulDB
CVSS severity: CRITICAL
CVSS score: 10.0 / 10
CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
Effective score: 10.0 / 10 CRITICAL source: CNA overview
CWE(s): CWE-78, CWE-77
Reserved: 2026-11-01
Published: 2026-11-01 23:30 UTC
Last updated: 2026-11-01 23:30 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/120xxx/CVE-2026-120277.json
Linked Threat: CVE-2026-120277 — WAVLINK WN536AX6-A WireGuard CLI Group ioos sub_41a1d8 os command injection

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-11-02 00:18:10 UTC
NVD last modified: 2026-11-02 00:18:10 UTC
NVD CVSS v3.1: 10.0 / 10 CRITICAL source: cna@vuldb.com
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Exploitability subscore: 3.9 / 10
Impact subscore: 6.0 / 10

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-114907
Assigner: VulDB
Published: Nov 1, 2026, 11:30:19 PM
Updated: Nov 1, 2026, 11:30:19 PM
EUVD base score (CVSS 4.0): 10.0 / 10
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
EUVD-reported EPSS: 0.0000
Vendors: WAVLINK
Products: WN536AX6-A (V260507_2.0.0)
Aliases: GHSA-f5q6-27px-wgxf

ENISA description: A security vulnerability has been detected in WAVLINK WN536AX6-A V260507_2.0.0. This issue affects the function sub_41a1d8 of the file /bin/ioos of the component WireGuard CLI Group Handler. Such manipulation of the argument group_name leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure.

EUVD references (5)

Affected products (1)

Vendor	Product	Versions	Platforms
WAVLINK	WN536AX6-A	`V260507_2.0.0` (affected)	—

Vendor references (5)

References embedded in the original CVE record by the assigning CNA.

VDB-429621 | WAVLINK WN536AX6-A WireGuard CLI Group ioos sub_41a1d8 os command injection vdb-entrytechnical-description
VDB-429621 | CTI Indicators (IOB, IOC, TTP, IOA) signaturepermissions-required
CVE-2026-120277 | CVE Analysis and Report third-party-advisory
Submit #919503 | Wavlink Router Firmware V260507_2.0.0 OS Command Injection third-party-advisory
https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK_WN536AX6-A%20Router/WAVLINK_WN536AX6-A_wireguard_cli_group_command_injection.md exploit

MITRE references (5) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK_WN536AX6-A%20Router/WAVLINK_WN536AX6-A_wireguard_cli_group_command_injection.md exploit
CVE-2026-120277 | CVE Analysis and Report third-party-advisory
Submit #919503 | Wavlink Router Firmware V260507_2.0.0 OS Command Injection third-party-advisory
VDB-429621 | WAVLINK WN536AX6-A WireGuard CLI Group ioos sub_41a1d8 os command injection vdb-entry, technical-description
VDB-429621 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (5)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK_WN536AX6-A%20Router/WAVLINK_WN536AX6-A_wireguard_cli_group_command_injection.md cna@vuldb.com
https://vuldb.com/cve/CVE-2026-120277 cna@vuldb.com
https://vuldb.com/submit/919503 cna@vuldb.com
https://vuldb.com/vuln/429621 cna@vuldb.com
https://vuldb.com/vuln/429621/cti cna@vuldb.com

Remediations (10)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

Security Advisories and Bulletins | Microsoft Learn

web:learn.microsoft.com

In this library you will find the following security documents that have been released by the Microsoft Security Response Center (MSRC). The MSRC investigates all reports of security vulnerabilities affecting Microsoft products and services, and releases these documents as part of the ongoing effort ...

2026-11-02 11:31 UTC
Security Update Guide - Microsoft

web:msrc.microsoft.com

The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

2026-11-02 11:31 UTC
Analysis: CVE-2026-88771 and CVE-2026-88772 - pentestit.com

web:pentestit.com

This post is my analysis of the Citrix NetScaler ADC and Gateway CVE - 2026 -88771 and CVE - 2026 -88772 vulnerabilities along with hunting and detection guidelines.

2026-11-02 11:31 UTC
Description of the security update for Office 2016: January 26, 2026 ...

web:support.microsoft.com

Summary This security update resolves a Microsoft Word security feature bypass vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE - 2026 -21509.

2026-11-02 11:31 UTC
SAP Security Patch Day - February 2026

web:support.sap.com

SAP security Patch Day Bulletin This post shares the information on security notes that remediate vulnerabilities discovered in SAP products. SAP strongly recommends that the customer visits the Support Portal and applies patches on priority to protect their SAP landscape. On 10th of February 2026 , SAP security patch day saw the release of 26 new security notes. Further, there was 1 update to ...

2026-11-02 11:31 UTC
Rapid CVE Mitigation | Cato Networks

web:www.catonetworks.com

Discover Cato Networks' Rapid CVE Mitigation , offering automated virtual patching for critical vulnerabilities, without customer involvement.

2026-11-02 11:31 UTC
Known Exploited Vulnerabilities Catalog - CISA

web:www.cisa.gov

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild. Organizations should use the KEV catalog as an input to their vulnerability management prioritization framework. Learn more about ...

2026-11-02 11:31 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-11-02 11:31 UTC
Oracle Critical Security Patch Update Advisory - September 2026

web:www.oracle.com

Prior Critical Patch Update and Critical Security Patch Update advisories should be reviewed for information regarding earlier published security patches. Refer to Critical Patch Updates, Critical Security Patch Updates, Security Alerts and Bulletins for information about Oracle Security advisories.

2026-11-02 11:31 UTC
The CVE Database: Curated Vulnerability Intelligence by Wiz | Wiz

web:www.wiz.io

Wiz's CVE Database curates CVE data to create easy-to-navigate profiles that cover the entire vulnerability timeline, exploit scenarios, and mitigation steps.

2026-11-02 11:31 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-120277.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:wavlink:wn536ax6-a:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "WireGuard CLI Group Handler"
          ],
          "product": "WN536AX6-A",
          "vendor": "WAVLINK",
          "versions": [
            {
              "status": "affected",
              "version": "V260507_2.0.0"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "shuyi (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "VulDB CNA Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A security vulnerability has been detected in WAVLINK WN536AX6-A V260507_2.0.0. This issue affects the function sub_41a1d8 of the file /bin/ioos of the component WireGuard CLI Group Handler. Such manipulation of the argument group_name leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
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            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
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            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 10,
            "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
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              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-77",
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              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-01T23:30:19.046Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-429621 | WAVLINK WN536AX6-A WireGuard CLI Group ioos sub_41a1d8 os command injection",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/429621"
        },
        {
          "name": "VDB-429621 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/429621/cti"
        },
        {
          "name": "CVE-2026-120277 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-120277"
        },
        {
          "name": "Submit #919503 | Wavlink Router Firmware V260507_2.0.0 OS Command Injection",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/919503"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK_WN536AX6-A%20Router/WAVLINK_WN536AX6-A_wireguard_cli_group_command_injection.md"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-11-01T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-11-01T01:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-11-01T08:49:31.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "WAVLINK WN536AX6-A WireGuard CLI Group ioos sub_41a1d8 os command injection",
      "x_generator": [
        "VulDB PVTS v202611"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-120277",
    "datePublished": "2026-11-01T23:30:19.046Z",
    "dateReserved": "2026-11-01T07:44:01.879Z",
    "dateUpdated": "2026-11-01T23:30:19.046Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}