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    CVE-2019-6989

    TP-Link TL-WR940N is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the ipAddrDispose function. By sending specially crafted ICMP echo request packets, a remote authenticated attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges.

    Published:Jun 6, 2019
    Last Modified:Nov 21, 2024
    EPS:Jun 6, 2019
    EPSS Score:0.19084
    CVSS Score:8.8

    Affected Products

    Vendor
    Tp-link
    Product
    Tl-wr940n
    Vendor
    Tp-link
    Product
    Tl-wr940n Firmware
    Vendor
    Tp-link
    Product
    Tl-wr941nd
    Vendor
    Tp-link
    Product
    Tl-wr941nd Firmware

    Exploits

    https://www.exploit-db.com/exploits/46678

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2025-14739 (CVSS 6.8) — Access of Uninitialized Pointer vulnerability in TP-Link WR940N and WR941ND allows local unauthenticated attac…
    CVE-2025-11676 (CVSS 7.1) — Improper input validation vulnerability in TP-Link System Inc. TL-WR940N V6 (UPnP modules), which allows unaut…
    CVE-2025-6151 (CVSS 8.2) — A vulnerability has been found in TP-Link TL-WR940N V4 and TL-WR841N V11. Affected by this issue is some unkn…
    CVE-2024-54887 (CVSS 8) — TP-Link TL-WR940N V3 and V4 with firmware 3.16.9 and earlier contain a buffer overflow via the dnsserver1 and …
    CVE-2023-50224 (CVSS 6.5) — TP-Link TL-WR841N dropbearpwd Improper Authentication Information Disclosure Vulnerability. This vulnerability…
    CVE-2023-39747 (CVSS 9.8) — TP-Link WR841N V8, TP-Link TL-WR940N V2, and TL-WR941ND V5 were discovered to contain a buffer overflow via th…
    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-2023-36359 (CVSS 7.5) — TP-Link TL-WR940N V4, TL-WR841N V8/V10, TL-WR940N V2/V3 and TL-WR941ND V5/V6 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-2023-36358 (CVSS 7.7) — TP-Link TL-WR940N V2/V3/V4, TL-WR941ND V5/V6, TL-WR743ND V1 and TL-WR841N V8 were discovered to contain a buff…

    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