RCE in Tp-link Tl-wr740n
CVE-2023-33538
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 .
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.419 (98.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Tp-link Tl-wr740n — versions 1.0, 2.0
- Tp-link Tl-wr740n_firmware
- Tp-link Tl-wr841n — versions 8.0, 10.0
- Tp-link Tl-wr841n_firmware
- Tp-link Tl-wr940n — versions 2.0, 4.0
- Tp-link Tl-wr940n_firmware
- N/a — versions n/a
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory, Broken Link)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (Third Party Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Product)
Frequently asked questions
- What is CVE-2023-33538?
- CVE-2023-33538 is a high-severity vulnerability in Tp-link Tl-wr740n, classified under Command Injection. CVSS score: 8.8/10. Published 2023-06-07.
- How severe is CVE-2023-33538?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2023-33538 known to be exploited?
- Yes. CVE-2023-33538 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-06-16), indicating it is being actively exploited. 9 public proof-of-concept repositories are indexed.