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    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 .

    Published:Jun 7, 2023
    Last Modified:Dec 20, 2025
    EPS:Jun 7, 2023
    EPSS Score:0.9132
    CVSS Score:8.8

    CISA Notification

    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 .

    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.

    Notes:

    No extra notes provided.

    Due Date
    Jul 7, 2025
    431 days ago
    Alert Date
    Jun 16, 2025
    452 days ago

    Affected Products

    Vendor
    Tp-link
    Product
    Tl-wr740n
    Vendor
    Tp-link
    Product
    Tl-wr740n Firmware
    Vendor
    Tp-link
    Product
    Tl-wr841n
    Vendor
    Tp-link
    Product
    Tl-wr841n Firmware
    Vendor
    Tp-link
    Product
    Tl-wr940n
    Vendor
    Tp-link
    Product
    Tl-wr940n Firmware

    Exploits

    https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/3/TL-WR940N_TL-WR841N_userRpm_WlanNetworkRpm_Command_Injection.mdhttps://web.archive.org/web/20230609111043/https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/3/TL-WR940N_TL-WR841N_userRpm_WlanNetworkRpm_Command_Injection.mdhttps://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/3/TL-WR940N_TL-WR841N_userRpm_WlanNetworkRpm_Command_Injection.mdhttps://web.archive.org/web/20230609111043/https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/3/TL-WR940N_TL-WR841N_userRpm_WlanNetworkRpm_Command_Injection.mdhttps://github.com/eev4n/tplink-oscihttps://github.com/explxx/CVE-2023-33538https://github.com/mrowkoob/CVE-2023-33538-msf

    Related CVEs

    CVE-2023-50224 (CVSS 6.5) — TP-Link TL-WR841N dropbearpwd Improper Authentication Information Disclosure Vulnerability. This vulnerability…
    CVE-2023-36356 (CVSS 7.7) — TP-Link TL-WR940N V2/V4/V6, TL-WR841N V8, TL-WR941ND V5, and TL-WR740N V1/V2 were discovered to contain a buff…
    CVE-2023-36354 (CVSS 7.5) — TP-Link TL-WR940N V4, TL-WR841N V8/V10, TL-WR740N V1/V2, TL-WR940N V2/V3, and TL-WR941ND V5/V6 were discovered…
    CVE-2023-33537 (CVSS 8.1) — TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain a buffer overflow via…
    CVE-2023-33536 (CVSS 8.1) — TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain a buffer overflow via…
    CVE-2022-4296 (CVSS 6.5) — A vulnerability classified as problematic has been found in TP-Link TL-WR740N. Affected is an unknown function…
    CVE-2020-14965 (CVSS 4.8) — On TP-Link TL-WR740N v4 and TL-WR740ND v4 devices, an attacker with access to the admin panel can inject HTML …
    CVE-2015-3035 (CVSS 7.5) — Directory traversal vulnerability in TP-LINK Archer C5 (1.2) with firmware before 150317, C7 (2.0) with firmwa…
    CVE-2014-9350 (CVSS 5) — TP-Link TL-WR740N 4 with firmware 3.17.0 Build 140520, 3.16.6 Build 130529, and 3.16.4 Build 130205 allows rem…

    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/

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High