CVE-2023-33538: TP-Link Multiple Routers Command Injection Vulnerability

Published Jun 7, 2023
·
Updated

TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 contain a command injection vulnerability via the component /userRpm/WlanNetworkRpm. The impacted products could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.

Other sources

TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain a command injection vulnerability via the component /userRpm/WlanNetworkRpm .

Affected Software

19 affected components
TP-Link Tl-wr940n Firmware
TP-Link TL-WR940N=2.0
TP-Link TL-WR940N=4.0
TP-Link TL-WR841N firmware
TP-Link TL-WR841N=8.0
TP-Link TL-WR841N=10.0
TP-Link Tl-wr740n Firmware
TP-Link TL-WR740N=1.0
TP-Link TL-WR740N=2.0
TP-Link Multiple Routers
All of the following
TP-Link Tl-wr940n Firmware
Any of the following
TP-Link TL-WR940N=2.0
TP-Link TL-WR940N=4.0
All of the following
TP-Link TL-WR841N firmware
Any of the following
TP-Link TL-WR841N=8.0
TP-Link TL-WR841N=10.0
All of the following
TP-Link Tl-wr740n Firmware
Any of the following
TP-Link TL-WR740N=1.0
TP-Link TL-WR740N=2.0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Compensating control

    Discontinue use of the impacted TP-Link routers: TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 (command injection via component /userRpm/WlanNetworkRpm), especially if the products are end-of-life (EoL) and/or end-of-service (EoS).

Event History

Jun 7, 2023
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·04:15 AM
DescriptionSeverityWeaknessAffected Software
Feb 19, 2024
News Published
via The Register·01:29 AM
Mar 11, 2024
News Published
via The Register·04:28 AM
Jun 17, 2024
News Published
via The Register·01:59 AM
Nov 25, 2024
News Published
via The Register·01:30 AM
Feb 17, 2025
News Published
via The Register·02:25 AM
Mar 16, 2025
News Published
via The Register·10:58 PM
Mar 30, 2025
News Published
via The Register·10:45 PM
Jun 16, 2025
Known Exploited
via CISA·12:00 AM
Data Sourced
via CISA·12:00 AM
RemedyDescriptionAffected Software
Jun 23, 2025
News Published
via The Register·12:33 AM
Feb 8, 2026
News Published
via The Register·10:25 PM
News Published
via The Register·10:28 PM
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Frequently Asked Questions

1

What is CVE-2023-33538?

CVE-2023-33538 is a command injection vulnerability in TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 routers.

2

How severe is CVE-2023-33538?

CVE-2023-33538 has a severity score of 8.8, which is considered high.

3

Which TP-Link router models are affected by CVE-2023-33538?

CVE-2023-33538 affects TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 routers.

4

What is the component that contains the command injection vulnerability?

The command injection vulnerability in CVE-2023-33538 is found in the /userRpm/WlanNetworkRpm component.

5

Is there a fix available for CVE-2023-33538?

Currently, there is no official fix available for CVE-2023-33538. It is recommended to update to the latest firmware when it becomes available or apply any provided patches from the vendor.

Contact

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