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    CVE-2026-0849

    Malformed ATAES132A responses with an oversized length field overflow a 52-byte stack buffer in the Zephyr crypto driver, allowing a compromised device or bus attacker to corrupt kernel memory and potentially hijack execution.

    Published:Mar 14, 2026
    Last Modified:Apr 2, 2026
    EPS:Mar 14, 2026
    EPSS Score:0.00017
    CVSS Score:3.8

    Affected Products

    Vendor
    Zephyrproject
    Product
    Zephyr
    Vendor
    Zephyrproject-rtos
    Product
    Zephyr

    Exploits

    https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-ff4p-3ggg-prp6https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-ff4p-3ggg-prp6

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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