TP-Link · Multiple Routers
CVE-2023-33538
TP-Link Multiple Routers Command Injection Vulnerability
What it is
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 .
CISA: 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.
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Deadline for US federal agencies: July 7, 2025
- Added to the CISA list
- June 16, 2025
- Published
- June 7, 2023
- Severity
- High 8.8 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 42% in the top 1.3% of all known vulnerabilities
- Weakness
- CWE-77
- More details
- NVD · CVE.org · CISA
All references (3)
- https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/3/TL-WR940N_TL-WR841N_userRpm_WlanNetworkRpm_Command…
- https://web.archive.org/web/20230609111043/https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/3/TL-WR94…
- https://www.secpod.com/blog/cisa-issues-warning-on-active-exploitation-of-tp-link-vulnerability-cve-2023-3353…
More exploited flaws from TP-Link
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Sep 3, 2025 | Archer C7(EU) and TL-WR841N/ND(MS) OS Command Injection | Multiple Routers | High 8.6 | 38% |
| Sep 3, 2025 | Authentication Bypass by Spoofing | TL-WR841N | Medium 6.5 | 20% |
| Sep 2, 2025 | Missing Authentication for Critical Function | TL-WA855RE | High 8.8 | 22% |
| May 1, 2023 | Archer AX-21 Command Injection | Archer AX21 | High 8.8 | >99.9% |
| Mar 25, 2022 | Directory Traversal | Multiple Archer Devices | High 7.5 | 84% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.