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    CVE-2023-51393

    Due to an allocation of resources without limits, an uncontrolled resource consumption vulnerability exists in Silicon Labs Ember ZNet SDK prior to v7.4.0.0 (delivered as part of Silicon Labs Gecko SDK v4.4.0) which may enable attackers to trigger a bus fault and crash of the device, requiring a reboot in order to rejoin the network.

    Published:Feb 23, 2024
    Last Modified:Apr 22, 2025
    EPS:Feb 23, 2024
    EPSS Score:0.00049
    CVSS Score:5.3

    Affected Products

    Vendor
    Silabs
    Product
    Emberznet
    Vendor
    Silabs
    Product
    Emberznet Sdk

    Exploits

    No exploit reference

    Related CVEs

    CVE-2025-1394 (CVSS 5.9) — The Ember ZNet stack’s packet buffer manager may read out of bound memory leading to an assert, causing a Deni…
    CVE-2025-1221 (CVSS 5.9) — A Zigbee Radio Co-Processor (RCP), which is using SiLabs EmberZNet Zigbee stack, was unable to send messages t…
    CVE-2023-51394 (CVSS 5.3) — High traffic environments may result in NULL Pointer Dereference vulnerability in Silicon Labs's Ember ZNet SD…
    CVE-2023-51392 (CVSS 6.2) — Ember ZNet between v7.2.0 and v7.4.0 used software AES-CCM instead of integrated hardware cryptographic accele…
    CVE-2023-41094 (CVSS 10) — TouchLink packets processed after timeout or out of range due to Operation on a Resource after Expiration and …
    CVE-2022-24938 (CVSS 6.5) — A malformed packet causes a stack overflow in the Ember ZNet stack. This causes an assert which leads to a re…
    CVE-2022-24937 (CVSS 6.5) — Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Silicon Labs Ember ZN…

    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