high8.8Known exploited
CVE-2023-33538
TP-Link Multiple Routers Command Injection Vulnerability
Exploited in the wild
This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2025-06-16. Federal due date: 2025-07-07.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Tp-Link | Tl-Wr940n Firmware | All versions |
| Tp-Link | Tl-Wr841n Firmware | All versions |
| Tp-Link | Tl-Wr740n Firmware | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- CISA KEV catalog
- https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/3/TL-WR940N_TL-WR841N_userRpm_WlanNetworkRpm_Command_Injection.md
- https://web.archive.org/web/20230609111043/https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/3/TL-WR940N_TL-WR841N_userRpm_WlanNetworkRpm_Command_Injection.md
- https://www.secpod.com/blog/cisa-issues-warning-on-active-exploitation-of-tp-link-vulnerability-cve-2023-33538/
- https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/3/TL-WR940N_TL-WR841N_userRpm_WlanNetworkRpm_Command_Injection.md
- https://web.archive.org/web/20230609111043/https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/3/TL-WR940N_TL-WR841N_userRpm_WlanNetworkRpm_Command_Injection.md
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-33538
- https://www.tp-link.com/us/support/faq/3562/