CVE-2026-11522

Description

A vulnerability was detected in Tenda W20E 15.11.0.6. This vulnerability affects the function formSetPortMirror of the file /goform/setPortMirror. Performing a manipulation of the argument portMirrorMirroredPorts results in stack-based buffer overflow. The attack can be initiated remotely. The exploit is now public and may be used.

Overview

State

—

Assigner (CNA)

—

CVSS severity

high

CVSS score

8.8 / 10

CVSS vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Effective score

8.8 / 10 HIGH source: CNA overview

CWE(s)

—

Reserved

—

Published

—

Last updated

—

Source

https://www.tenable.com/cve/CVE-2026-11522

Linked Threat

CVE-2026-11522 — CVE-2026-11522

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

2026-06-08 16:16:36 UTC

NVD last modified

2026-07-23 07:10:00 UTC

NVD CVSS v3.1

8.8 / 10 HIGH source: cna@vuldb.com

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability subscore

2.8 / 10

Impact subscore

5.9 / 10

EPSS score

0.0047 (probability of exploitation in next 30 days)

EPSS percentile

38.01% vs all CVEs — higher = more likely to be exploited, as of 2026-08-01

NVD-assigned CWE(s): CWE-119, CWE-121 (differs from the CNA list above)

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-2026-35077

Assigner

VulDB

Published

Jun 8, 2026, 2:30:11 PM

Updated

Jun 8, 2026, 3:52:25 PM

EUVD base score (CVSS 4.0)

8.7 / 10
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

EUVD-reported EPSS

0.4700

Vendors

Tenda

Products

W20E (15.11.0.6)

Aliases

GHSA-3fr6-p7vj-gvw2

ENISA description: A vulnerability was detected in Tenda W20E 15.11.0.6. This vulnerability affects the function formSetPortMirror of the file /goform/setPortMirror. Performing a manipulation of the argument portMirrorMirroredPorts results in stack-based buffer overflow. The attack can be initiated remotely. The exploit is now public and may be used.

Vendor references (0)

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

None in the CVE record.

Web references (8)

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

• https://github.com/Robots10/IoT_vlu/blob/main/reports/Tenda/formSetPortMirror/portMirrorMirroredPorts.md tenable:github.com
• https://nvd.nist.gov/vuln/detail/CVE-2026-11522 tenable:nvd.nist.gov
• https://vuldb.com/cve/CVE-2026-11522 tenable:vuldb.com
• https://vuldb.com/submit/836469 tenable:vuldb.com
• https://vuldb.com/vuln/369142 tenable:vuldb.com
• https://vuldb.com/vuln/369142/cti tenable:vuldb.com
• https://www.cve.org/CVERecord?id=CVE-2026-11522 tenable:www.cve.org
• https://www.tenda.com.cn/ tenable:www.tenda.com.cn

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

• June 2026 Critical Security Patch Update Released | security
  web:blogs.oracle.com

  For more information about the Critical Security Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.

  2026-06-19 02:37 UTC
• Nvd - Cve-2026-11222
  web:nvd.nist.gov

  An official website of the United States government Here's how you know

  2026-06-19 02:37 UTC
• Security Update Guide - Loading - Microsoft
  web:portal.msrc.microsoft.com

  The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

  2026-06-19 02:37 UTC
• June 9, 2026—KB5094126 (OS Builds 26200.8655 and 26100.8655)
  web:support.microsoft.com

  This cumulative update for Windows 11, version 25H2 and 24H2 (KB5094126) includes the latest security fixes and improvements, along with non-security updates from last month's optional preview release. Visit the Windows release health dashboard for the latest status on this release.

  2026-06-19 02:37 UTC
• SAP Security Patch Day - February 2026
  web:support.sap.com

  SAP security Patch Day Bulletin

  2026-06-19 02:37 UTC
• Microsoft is working on a patch for 'YellowKey ... - Computerworld
  web:www.computerworld.com

  Microsoft says it is considering a patch for a zero-day vulnerability, dubbed YellowKey, that allows attackers with access to a Windows device to bypass Bitlocker encryption protection and read ...

  2026-06-19 02:37 UTC
• May 2026 Patch Tuesday: Updates and Analysis | CrowdStrike
  web:www.crowdstrike.com

  Microsoft has released security updates for 130 vulnerabilities, including 30 critical, in its May 2026 Patch Tuesday rollout.

  2026-06-19 02:37 UTC
• Oracle Critical Security Patch Update Advisory - May 2026
  web:www.oracle.com

  This Critical Security Patch Update contains 35 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Security Patch Update and other Oracle Software Security Assurance activities is located at May 2026 Critical Security Patch Update: Executive Summary and Analysis.

  2026-06-19 02:37 UTC
• Patch Tuesday - June 2026 - Rapid7
  web:www.rapid7.com

  Microsoft is publishing 200 vulnerabilities on June 2026 Patch Tuesday, including an HTTP/2 denial of service vulnerability and an elevation of privilege vulnerability in PowerToys.

  2026-06-19 02:37 UTC
• Patch Tuesday June 2026: Security Updates & CVE Analysis
  web:zecurit.com

  Get the complete breakdown of Microsoft's June 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

  2026-06-19 02:37 UTC

Only Available for Registered Users. Sign in to view.