How do I check whether I am affected by CVE-2026-10133?

In the router admin page, read the firmware version. You are affected if it is TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327. No command is published. Also check whether the web admin is reachable from the WAN (remote management setting) and whether untrusted devices share your LAN.

What is the fix for CVE-2026-10133?

unknown: no fixed firmware is named by Talos, the CVE record or the sources found. Check totolink.net X2000R product page (https://www.totolink.net/home/menu/newstpl/menu_newstpl/products/id/242.html) for newer firmware. Meanwhile, turn off remote/WAN admin, use a strong unique admin password, and keep untrusted devices off the LAN.

Who is not affected by CVE-2026-10133?

Not affected if: auth-required, other-models, wan-admin-disabled.

Live › vulnerability › CVE-2026-10133

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critical9.1Infrastructure

TOTOLINK X2000R router: batchupg overflow lets an attacker run code

Stack buffer overflow in the batchupg helper binary on the TOTOLINK X2000R (CWE-121, CVSS 9.1). An authenticated admin POST to /boafrm/formBuploadSetting starts batchupg, which listens for UDP broadcast on port 13977. A crafted packet's csid field overflows a stack buffer in send_broadcast_resp and gives code execution as the router. Talos reached a crash with control of the program counter. No vendor patch is known.

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 runs arbitrary code on the router after logging in.
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-2026-10133

Go to dashboard

critical9.1Infrastructure

TOTOLINK X2000R router: batchupg overflow lets an attacker run code

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 runs arbitrary code on the router after logging in.
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: batchupg overflow lets an attacker run code

Why it is critical, and not just CVSS

Who is affected

Know the next one before it finds you.

TOTOLINK X2000R router: batchupg overflow lets an attacker run code

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