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    CVE-2019-18948

    An issue was found in Arista EOS. Specific malformed ARP packets can impact the software forwarding of VxLAN packets. This issue is found in Arista’s EOS VxLAN code, which can allow attackers to crash the VxlanSwFwd agent. This affects EOS 4.21.8M and below releases in the 4.21.x train, 4.22.3M and below releases in the 4.22.x train, 4.23.1F and below releases in the 4.23.x train, and all releases in 4.15, 4.16, 4.17, 4.18, 4.19, 4.20 code train.

    Published:Apr 16, 2020
    Last Modified:Nov 21, 2024
    EPS:Apr 16, 2020
    EPSS Score:0.00457
    CVSS Score:7.5

    Affected Products

    Vendor
    Arista
    Product
    Eos

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2025-8873 (CVSS 8.7) — On affected platforms running Arista EOS with IPsec configured, a specially crafted packet can cause the datap…
    CVE-2023-5502 (CVSS 8.2) — On affected platforms running Arista EOS with 802.1x authentication configured on the access/trunk ports, and …
    CVE-2024-27892 (CVSS 7.2) — Affected platforms running Arista EOS with OpenConfig configured, a gNMI Set request can be run when it should…
    CVE-2024-27890 (CVSS 7.2) — Affected platforms running Arista EOS with OpenConfig configured, a gNMI Set request can be run when it should…
    CVE-2024-27891 (CVSS 6.9) — On affected platforms running Arista EOS with MACsec and egress ACLs configured on the same interfaces, the AC…
    CVE-2024-6858 (CVSS 6.5) — In Arista’s EOS when in 802.1X mode, multi-auth unauthenticated hosts might be allowed access to a switch port…
    CVE-2025-7048 (CVSS 5.3) — On affected platforms running Arista EOS with MACsec configuration, a specially crafted packet can cause the M…
    CVE-2025-8872 (CVSS 7.1) — On affected platforms running Arista EOS with OSPFv3 configured, a specially crafted packet can cause the OSFP…

    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