CVE Feed

    Dashboard / CVE / CVE-2023-0809

    CVE-2023-0809

    In Mosquitto before 2.0.16, excessive memory is allocated based on malicious initial packets that are not CONNECT packets.

    Published:Sep 1, 2023
    Last Modified:Feb 13, 2025
    EPS:Oct 2, 2023
    EPSS Score:0.00028
    CVSS Score:5.8

    Affected Products

    Vendor
    Eclipse
    Product
    Mosquitto
    Vendor
    Redhat
    Product
    Satellite
    Vendor
    Redhat
    Product
    Satellite Capsule

    Exploits

    No exploit reference

    Related CVEs

    CVE-2024-3935 (CVSS 6) — In Eclipse Mosquito, versions from 2.0.0 through 2.0.18, if a Mosquitto broker is configured to create an outg…
    CVE-2024-10525 (CVSS 7.2) — In Eclipse Mosquitto, from version 1.3.2 through 2.0.18, if a malicious broker sends a crafted SUBACK packet w…
    CVE-2024-8376 (CVSS 7.2) — In Eclipse Mosquitto up to version 2.0.18a, an attacker can achieve memory leaking, segmentation fault or heap…
    CVE-2023-5632 (CVSS 7.5) — In Eclipse Mosquito before and including 2.0.5, establishing a connection to the mosquitto server without send…
    CVE-2023-3592 (CVSS 5.8) — In Mosquitto before 2.0.16, a memory leak occurs when clients send v5 CONNECT packets with a will message that…
    CVE-2023-28366 (CVSS 7.5) — The broker in Eclipse Mosquitto 1.3.2 through 2.x before 2.0.16 has a memory leak that can be abused remotely …
    CVE-2021-41039 (CVSS 7.5) — In versions 1.6 to 2.0.11 of Eclipse Mosquitto, an MQTT v5 client connecting with a large number of user-prope…
    CVE-2021-34434 (CVSS 5.3) — In Eclipse Mosquitto versions 2.0 to 2.0.11, when using the dynamic security plugin, if the ability for a clie…
    CVE-2021-34432 (CVSS 7.5) — In Eclipse Mosquitto versions 2.0.7 and earlier, the server will crash if the client tries to send a PUBLISH p…
    CVE-2021-34431 (CVSS 6.5) — In Eclipse Mosquitto version 1.6 to 2.0.10, if an authenticated client that had connected with MQTT v5 sent a …

    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