CVE-2023-33538TP-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 .
Updated under an hour ago ()
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It affects tp-link tl-wr940n_firmware and 2 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Jun 16, 2025; federal agencies had to remediate by Jul 7, 2025. Treat that date as your deadline.
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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 .
- CVSS
- 8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-77
- Known exploited
- Added to CISA KEV Jun 16, 2025; federal remediation due Jul 7, 2025Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- EPSS (exploitation in the next 30 days)
- 41.61% (percentile 99)
- Assigned by
- mitre
- NVD analysis
- Analyzed
- Record last updated
- Dec 20, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
tp-link tl-wr940n_firmware tp-link:tl-wr940n_firmware | all versions | NVD |
tp-link tl-wr841n_firmware tp-link:tl-wr841n_firmware | all versions | NVD |
tp-link tl-wr740n_firmware tp-link:tl-wr740n_firmware | all versions | NVD |
References
- https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/3/TL-WR940N_TL-WR841N_userRpm_WlanNetworkRpm_Command_Injection.mdbroken-link, exploit, third-party-advisory
- 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.mdexploit, third-party-advisory
- https://www.secpod.com/blog/cisa-issues-warning-on-active-exploitation-of-tp-link-vulnerability-cve-2023-33538/third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-33538us-government-resource
- https://www.tp-link.com/us/support/faq/3562/product
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.