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    CVE-2023-24826

    RIOT-OS, an operating system for Internet of Things (IoT) devices, contains a network stack with the ability to process 6LoWPAN frames. Prior to version 2023.04, an attacker can send crafted frames to the device to trigger the usage of an uninitialized object leading to denial of service. This issue is fixed in version 2023.04. As a workaround, disable fragment forwarding or SFR.

    Published:May 30, 2023
    Last Modified:Jan 10, 2025
    EPS:May 30, 2023
    EPSS Score:0.00205
    CVSS Score:5.9

    Affected Products

    Vendor
    Riot-os
    Product
    Riot

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-824 Access of Uninitialized Pointer

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-27703 (CVSS 7.5) — RIOT is an open-source microcontroller operating system, designed to match the requirements of Internet of Thi…
    CVE-2026-25139 (CVSS 8.7) — RIOT is an open-source microcontroller operating system, designed to match the requirements of Internet of Thi…
    CVE-2026-22214 (CVSS 6.8) — RIOT OS versions up to and including 2026.01-devel-317 contain a stack-based buffer overflow vulnerability in …
    CVE-2026-22213 (CVSS 2.4) — RIOT OS versions up to and including 2026.01-devel-317 contain a stack-based buffer overflow vulnerability in …
    CVE-2025-66647 (CVSS 1.7) — RIOT is an open-source microcontroller operating system, designed to match the requirements of Internet of Thi…
    CVE-2025-66646 (CVSS 1.7) — RIOT is an open-source microcontroller operating system, designed to match the requirements of Internet of Thi…
    CVE-2025-53888 (CVSS 6.6) — RIOT-OS, an operating system that supports Internet of Things devices, has an ineffective size check implement…
    CVE-2024-53980 (CVSS 6.9) — RIOT is an open-source microcontroller operating system, designed to match the requirements of Internet of Thi…
    CVE-2024-52802 (CVSS 7.5) — RIOT is an operating system for internet of things (IoT) devices. In version 2024.04 and prior, the function `…
    CVE-2024-32018 (CVSS 8.8) — RIOT is a real-time multi-threading operating system that supports a range of devices that are typically 8-bit…

    References

    https://github.com/RIOT-OS/RIOT/blob/ccbb304eae7b59e8aca24a6ffd095b5b3f7720ee/sys/net/gnrc/network_layer/sixlowpan/frag/sfr/gnrc_sixlowpan_frag_sfr.c#L402
    https://github.com/RIOT-OS/RIOT/blob/ccbb304eae7b59e8aca24a6ffd095b5b3f7720ee/sys/net/gnrc/network_layer/sixlowpan/frag/sfr/gnrc_sixlowpan_frag_sfr.c#L420
    https://github.com/RIOT-OS/RIOT/commit/287f030af20e829469cdf740606148018a5a220d
    https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-xfj4-9g7w-f4gh
    https://github.com/RIOT-OS/RIOT/blob/ccbb304eae7b59e8aca24a6ffd095b5b3f7720ee/sys/net/gnrc/network_layer/sixlowpan/frag/sfr/gnrc_sixlowpan_frag_sfr.c#L402
    https://github.com/RIOT-OS/RIOT/blob/ccbb304eae7b59e8aca24a6ffd095b5b3f7720ee/sys/net/gnrc/network_layer/sixlowpan/frag/sfr/gnrc_sixlowpan_frag_sfr.c#L420
    https://github.com/RIOT-OS/RIOT/commit/287f030af20e829469cdf740606148018a5a220d
    https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-xfj4-9g7w-f4gh

    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