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    CVE-2019-17147

    This vulnerability allows remote attackers to execute arbitrary code on affected installations of TP-LINK TL-WR841N routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the web service, which listens on TCP port 80 by default. When parsing the Host request header, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length static buffer. An attacker can leverage this vulnerability to execute code in the context of the admin user. Was ZDI-CAN-8457.

    Published:Jan 7, 2020
    Last Modified:Nov 21, 2024
    EPS:Jan 7, 2020
    EPSS Score:0.21995
    CVSS Score:8.8

    Affected Products

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

    Exploits

    https://github.com/DrmnSamoLiu/CVE-2019-17147_Practice_Materialhttps://github.com/imnot-ye/CVE-2019-17147

    Related CVEs

    CVE-2026-5039 (CVSS 6.1) — TP-Link TL-WR841N v13 uses DES-CBC encryption in the TDDPv2 debug protocol with a cryptographic key derived fr…
    CVE-2026-3622 (CVSS 7.1) — The vulnerability exists in the UPnP component of TL-WR841N v14, where improper input validation leads to an o…
    CVE-2026-3227 (CVSS 8.5) — A command injection vulnerability was identified in TP-Link TL-WR802N v4, TL-WR841N v14, and TL-WR840N v6 due …
    CVE-2025-9014 (CVSS 6.3) — A Null Pointer Dereference vulnerability exists in the referer header check of the web portal of TP-Link TL-WR…
    CVE-2025-9377 (CVSS 8.6) — The authenticated remote command execution (RCE) vulnerability exists in the Parental Control page on TP-Link…
    CVE-2025-53715 (CVSS 6.9) — A vulnerability has been found in TP-Link TL-WR841N V11. The vulnerability exists in the /userRpm/Wan6to4Tunne…
    CVE-2025-53714 (CVSS 6.9) — A vulnerability has been found in TP-Link TL-WR841N V11. The vulnerability exists in the /userRpm/WzdWlanSiteS…
    CVE-2025-53713 (CVSS 6.9) — A vulnerability has been found in TP-Link TL-WR841N V11. The vulnerability exists in the /userRpm/WlanNetworkR…
    CVE-2025-53712 (CVSS 6.9) — A vulnerability has been found in TP-Link TL-WR841N V11. The vulnerability exists in the /userRpm/WlanNetworkR…
    CVE-2025-53711 (CVSS 6.9) — A vulnerability has been found in TP-Link TL-WR841N v11, TL-WR842ND v2 and TL-WR494N v3. The vulnerability exi…

    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