CVE-2026-42950: Broken Admin Page in ELECOM WAB-BE187-M
Platform
linux
Component
elecom-wab-be187-m
CVE-2026-42950 affects the ELECOM WAB-BE187-M Wireless LAN Access Point. This vulnerability allows a malicious page to potentially break the administrative interface in a user's web browser, potentially leading to unauthorized access or configuration changes. The vulnerability impacts versions 1.1.3 through 1.1.10. A firmware update is required to resolve this issue.
Impact and Attack Scenarios
The primary impact of CVE-2026-42950 is the potential disruption of the administrative interface. While the description doesn't detail complete admin takeover, a broken admin page could hinder legitimate administrators from managing the access point, potentially leading to service outages or misconfigurations. An attacker could leverage this to inject malicious scripts into the page, potentially stealing credentials or redirecting users. The blast radius is limited to users who view the malicious page while logged into the access point’s web interface, but the impact on administrative functions could be significant.
Exploitation Context
CVE-2026-42950 was published on May 13, 2026. Its severity is pending further evaluation. There are currently no publicly known proof-of-concept exploits. It is not listed on KEV or EPSS. Active campaigns targeting this vulnerability are not currently known.
Threat Intelligence
Exploit Status
CISA SSVC
CVSS Vector
What do these metrics mean?
- Attack Vector
- Network — remotely exploitable over the internet. No physical or local access required. Widest attack surface.
- Attack Complexity
- Low — no special conditions required. Attacker can exploit reliably without depending on rare configurations or timing.
- Privileges Required
- None — unauthenticated. No login or credentials needed to exploit.
- User Interaction
- Required — victim must take an action: open a file, click a link, or visit a crafted page.
- Scope
- Unchanged — impact is limited to the vulnerable component itself.
- Confidentiality
- None — no confidentiality impact. Attacker cannot read protected data.
- Integrity
- None — no integrity impact. Attacker cannot modify data.
- Availability
- Low — partial or intermittent denial of service. Attacker can degrade performance.
Affected Software
Weakness Classification (CWE)
Timeline
- Reserved
- Published
Mitigation and Workarounds
The primary mitigation for CVE-2026-42950 is to upgrade the ELECOM WAB-BE187-M firmware to a version that addresses the language parameter validation issue. Unfortunately, a fixed version is not specified in the CVE details. As a temporary workaround, restrict access to the administrative interface to trusted users and networks. Implement strict content security policies (CSP) on the access point's web interface to limit the execution of potentially malicious scripts. Monitor access point logs for unusual activity or attempts to access the administrative interface from unauthorized sources.
How to fix
Actualice el firmware del dispositivo ELECOM WAB-BE187-M a una versión corregida. Consulte el sitio web de ELECOM para obtener las últimas actualizaciones de firmware y las instrucciones de instalación. La falta de validación del parámetro de idioma permite la exposición de la página de administración, por lo que es crucial aplicar la actualización para mitigar el riesgo.
Frequently asked questions
What is CVE-2026-42950 — Broken Admin Page in ELECOM WAB-BE187-M?
CVE-2026-42950 describes a vulnerability in the ELECOM WAB-BE187-M access point where a malicious page can break the admin interface. It's rated as medium severity (CVSS 4.3) and affects versions 1.1.3–v1.1.10.
Am I affected by CVE-2026-42950 in ELECOM WAB-BE187-M?
You are affected if you are using an ELECOM WAB-BE187-M access point with firmware versions 1.1.3 through 1.1.10. Upgrade your firmware as soon as a patch is available.
How do I fix CVE-2026-42950 in ELECOM WAB-BE187-M?
The recommended fix is to upgrade to a patched firmware version. Unfortunately, a fixed version is not specified. Until then, restrict admin access and implement CSP.
Is CVE-2026-42950 being actively exploited?
Currently, there are no publicly known active exploitation campaigns targeting CVE-2026-42950.
Where can I find the official ELECOM advisory for CVE-2026-42950?
Please refer to the ELECOM website or contact ELECOM support for the official advisory regarding CVE-2026-42950.
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