HIGH✓ PATCH🇵🇱 Wersja polska

CVE-2021-1439

CVSS 7.4v3.1pub. 2021-03-24upd. 2024-11-21

A vulnerability in the multicast DNS (mDNS) gateway feature of Cisco Aironet Series Access Points Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of incoming mDNS traffic. An attacker could exploit this vulnerability by sending a crafted mDNS packet to an affected device through a wireless network that is configured in FlexConnect local switching mode or through a wired network on a configured mDNS VLAN. A successful exploit could allow the attacker to cause the access point (AP) to reboot, resulting in a DoS condition.

CVSS Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

  • Cisco 1100 Integrated Services Router

    HW
    Cisco
    all versions

  • Cisco Aironet 1540

    HW
    Cisco
    all versions

  • Cisco Aironet 1560

    HW
    Cisco
    all versions

  • Cisco Aironet 1800

    HW
    Cisco
    all versions

  • Cisco Aironet 2800

    HW
    Cisco
    all versions

  • Cisco Aironet 3800

    HW
    Cisco
    all versions

  • Cisco Aironet 4800

    HW
    Cisco
    all versions

  • Cisco Aironet Access Point Software

    APP
    Cisco
    all versions

  • Cisco Catalyst 9100

    HW
    Cisco
    all versions

  • Cisco Catalyst 9800

    HW
    Cisco
    all versions

  • Cisco Catalyst 9800 Firmware

    OS
    Cisco
    17.1 – 17.3.3 (excl.)

  • Cisco Catalyst Iw6300

    HW
    Cisco
    all versions

  • Cisco Esw6300

    HW
    Cisco
    all versions
🟢
PATCH AVAILABLE
Vendor update available. Deploy in standard maintenance cycle.
Tags
DoS
CWE
References

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