CVE Feed

    Dashboard / CVE / CVE-2024-47181

    CVE-2024-47181

    Contiki-NG is an open-source, cross-platform operating system for IoT devices. An unaligned memory access can be triggered in the two RPL implementations of the Contiki-NG operating system. The problem can occur when either one of these RPL implementations is enabled and connected to an RPL instance. If an IPv6 packet containing an odd number of padded bytes before the RPL option, it can cause the rpl_ext_header_hbh_update function to read a 16-bit integer from an odd address. The impact of this unaligned read is architecture-dependent, but can potentially cause the system to crash. The problem has not been patched as of release 4.9, but will be included in the next release. One can apply the changes in Contiki-NG pull request #2962 to patch the system or wait for the next release.

    Published:Nov 27, 2024
    Last Modified:Apr 10, 2025
    EPS:Nov 27, 2024
    EPSS Score:0.00142
    CVSS Score:7.5

    Affected Products

    Vendor
    Contiki-ng
    Product
    Contiki-ng

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-5857 (CVSS 9.2) — Contiki-NG's MQTT client parse_publish_vhdr() in os/net/app-layer/mqtt/mqtt.c sets topic_len_received=1 before…
    CVE-2026-5856 (CVSS 7.1) — Contiki-NG's DNS/mDNS resolver skip_name() in os/services/resolv/resolv.c walks DNS wire-format name labels wi…
    CVE-2026-5855 (CVSS 8.7) — Contiki-NG's LwM2M TLV parser lwm2m_tlv_read() in os/services/lwm2m/lwm2m-tlv.c ignores its caller-supplied bu…
    CVE-2023-29001 (CVSS 8.7) — Contiki-NG is an open-source, cross-platform operating system for IoT devices. The Contiki-NG operating system…
    CVE-2024-41125 (CVSS 8.3) — Contiki-NG is an open-source, cross-platform operating system for IoT devices. An out-of-bounds read of 1 byte…
    CVE-2024-41126 (CVSS 8.3) — Contiki-NG is an open-source, cross-platform operating system for IoT devices. An out-of-bounds read of 1 byte…
    CVE-2023-50926 (CVSS 7.5) — Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An out-of-bound…
    CVE-2023-50927 (CVSS 8.6) — Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An attacker can…
    CVE-2023-48229 (CVSS 7) — Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An out-of-bound…
    CVE-2020-27634 (CVSS 9.1) — In Contiki 4.5, TCP ISNs are improperly random.…

    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