CVE-2023-33538

high

Description

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 .

References

https://www.secpod.com/blog/cisa-issues-warning-on-active-exploitation-of-tp-link-vulnerability-cve-2023-33538/

https://thehackernews.com/2026/04/mirai-variant-nexcorium-exploits-cve.html

https://unit42.paloaltonetworks.com/exploitation-of-cve-2023-33538/

https://thehackernews.com/2025/06/tp-link-router-flaw-cve-2023-33538.html

https://securityaffairs.com/179086/security/u-s-cisa-adds-apple-products-and-tp-link-routers-flaws-to-its-known-exploited-vulnerabilities-catalog.html

https://securityaffairs.com/191040/hacking/cve-2023-33538-under-attack-for-a-year-but-exploitation-still-unsuccessful.html

https://www.tp-link.com/us/support/faq/3562/

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-33538

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://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/3/TL-WR940N_TL-WR841N_userRpm_WlanNetworkRpm_Command_Injection.md

Details

Source: Mitre, NVD

Published: 2023-06-07

Updated: 2025-10-27

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H