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Authenticated OS Command Injection in Archer AX3000 v2 Offline Download Component

Archer AX3000 v2 devices with a USB storage device attached to the Offline Download component are affected. The fix is in 1.1.3 Build 261026.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

7.3HighCNA
Exploited
No known exploitation
Fix
Fixed in 1.1.3 Build 261026
Who is exposed
Specific setups only

Do first: Check whether your setup matches what the bug needs. Archer AX3000 v2 with a USB storage device attached to the Offline Download component

12Pcve.now Index 12 of 100 · methodology v3 · provisional
  • Exploitation?/40Exploitation: unknown (data gap). No CISA SSVC exploitation rating yet
  • Exposure5/25Specific setups only
  • Reach?/20Reach: unknown (data gap). No tracked technology or package matched
  • Severity7.3/10CVSS 7.3
  • No patch0/5No signal

What would change the score

  • Would score about 62 if added to CISA KEV
  • Would score about 57 if CISA's SSVC rates exploitation active
  • Would score about 22 if CISA's SSVC rates it automatable

CVE-2026-118865 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 7.3 (high) and affects Archer AX3000 v2; fixed in 1.1.3 Build 261026.

Published
Last modified
Published
Not listed in CISA KEV
12/100 · provisional
Specific setups only
Fix
Fixed in 1.1.3 Build 261026
None on Exploit-DB, Metasploit or GitHub

Summary

The Archer AX3000 v2 router's Offline Download feature, which handles USB storage devices, is affected. An authenticated administrator could exploit it to run arbitrary commands on the device.

Read the original description

An authenticated OS command injection vulnerability exists in the Offline Download component (USB storage allocation) of Archer AX3000 v2. When a USB storage device is attached, an authenticated administrator can submit a crafted path value containing shell metacharacters that is not properly neutralized before being passed to a system command.  Successful exploitation may allow arbitrary command execution on the affected device.

What to do

  • Check whether your setup matches what the bug needs.

    Archer AX3000 v2 with a USB storage device attached to the Offline Download component
  • Upgrade to a fixed version: 1.1.3 Build 261026.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • TP-Link Systems Inc. Archer AX3000 v2

    fixed in 1.1.3 Build 261026

Evidence 2

  1. Advisory
  2. Patch

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

FAQ

Questions about CVE-2026-118865

Is CVE-2026-118865 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data

What does this mean?

When a USB storage device is attached, an authenticated administrator can submit a crafted path value to the Offline Download component. Successful use of this path may allow arbitrary command execution on the device.Source: tp-link.com

Which versions are affected by CVE-2026-118865?

Archer AX3000 v2: before 1.1.3 Build 261026.Source: cve.now feed data

Am I affected, and how do I check?

The affected product is the Archer AX3000 v2, with firmware versions before 1.1.3 Build 261026. The condition is a USB storage device attached to the Offline Download component. To check, look up the firmware version in the router's admin interface and see whether a USB storage device is connected.Source: tp-link.com

How do I fix CVE-2026-118865?

Update the Archer AX3000 v2 to firmware 1.1.3 Build 261026 or later.Source: tp-link.com