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    CVE-2026-1681

    Issuing an ICMP ping via the `net ping` shell command to a device's own IPv4 address causes the network stack to recursively re-enter the input path on the same system work-queue stack. Because the destination is recognized as a local address, both the echo request and the resulting echo reply are processed inline before the current frame returns. The nested input-path frames exceed the work-queue stack and trigger a stack overflow.

    Published:May 12, 2026
    Last Modified:May 12, 2026
    EPS:May 12, 2026
    EPSS Score:0.00013
    CVSS Score:6.1

    Affected Products

    Vendor
    Zephyrproject-rtos
    Product
    Zephyr

    Exploits

    https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-6fcc-8rwr-w7xx

    Common Weakness Enumeration

    CWE-674 Uncontrolled Recursion

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-230 Serialized Data with Nested Payloads
    CAPEC-231 Oversized Serialized Data Payloads

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    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