What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2025-06-16
• EPSS: 41.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-06-07 · updated 2026-06-17
• Weakness: CWE-77

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 .

Affected products

• TP-Link TL-WR740N: all versions
• TP-Link TL-WR841N: all versions
• TP-Link TL-WR940N: all versions

References

• 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/

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