How do I check whether I am affected by CVE-2026-10141?

In the router admin UI, check the firmware version (Status page). Build TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327 is affected. Also check whether the admin interface is reachable from WAN (remote management setting) or from untrusted LAN/guest segments.

What is the fix for CVE-2026-10141?

No fixed firmware published as of 2026-10-23 (vendor acknowledged 2026-06-25, no patch listed by Talos). Mitigate: disable remote/WAN management, change the default admin password, restrict admin access to a trusted LAN host, and watch totolink.net for a new X2000R firmware. Replace the device if none ships.

Who is not affected by CVE-2026-10141?

Not affected if: admin-interface-not-reachable, no-web-admin-exposure, other-firmware-versions, other-totolink-models.

Live › vulnerability › CVE-2026-10141

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critical9.1Infrastructure

TOTOLINK X2000R router: unsigned firmware accepted, enabling malicious firmware install

The boa web server on the TOTOLINK X2000R (build TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327) accepts firmware images that pass only a model-string and additive checksum test. It never verifies a cryptographic signature. An attacker with admin login can flash arbitrary firmware through /boafrm/formUpload or /boafrm/formUploadFile and persist on the router. The CVSS 9.1 score assumes high privileges, so it is mainly a persistence step after the same build's many auth-required RCE bugs or stolen credentials.

Summary written from the sources below. Check the originals before acting.

CVSS 3.x

9.1

critical

scored by [email protected]

known so far5 of 6

missing: exploitation

First public: Oct 20, 2026 UTC
Last modified: Oct 23, 2026
Status: open
Known exploitation: None reported
Public exploit: None on GitHub
EPSS: not scored

First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.

Why it is critical, and not just CVSS

Likelihood → · Impact ↓

critical

high

medium

high

medium

low

medium

low

Exploited: No reports yet.
Needs login: Yes.
Needs a special setup: Not known from the sources.
Reachable from: network.
Worst case: Attacker replaces router firmware and controls the device and traffic.
CVSS said: 9.1. The facts above say medium; we keep the sources' critical until an analyst looks.

Who is affected

1 product

Know the next one before it finds you.

Add to Slack

Live › vulnerability › CVE-2026-10141

Go to dashboard

critical9.1Infrastructure

TOTOLINK X2000R router: unsigned firmware accepted, enabling malicious firmware install

Summary written from the sources below. Check the originals before acting.

CVSS 3.x

9.1

critical

scored by [email protected]

known so far5 of 6

missing: exploitation

First public: Oct 20, 2026 UTC
Last modified: Oct 23, 2026
Status: open
Known exploitation: None reported
Public exploit: None on GitHub
EPSS: not scored

First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.

Why it is critical, and not just CVSS

Likelihood → · Impact ↓

critical

high

medium

high

medium

low

medium

low

Exploited: No reports yet.
Needs login: Yes.
Needs a special setup: Not known from the sources.
Reachable from: network.
Worst case: Attacker replaces router firmware and controls the device and traffic.
CVSS said: 9.1. The facts above say medium; we keep the sources' critical until an analyst looks.

Who is affected

1 product

Know the next one before it finds you.

Add to Slack

TOTOLINK X2000R router: unsigned firmware accepted, enabling malicious firmware install

Why it is critical, and not just CVSS

Who is affected

Know the next one before it finds you.

TOTOLINK X2000R router: unsigned firmware accepted, enabling malicious firmware install

Why it is critical, and not just CVSS

Who is affected

Know the next one before it finds you.

How to check

The fix

Who had it, and when

What the sources say, verbatim

Sources