MEDIUM✓ PATCH🇵🇱 Wersja polska

CVE-2024-20309

CVSS 5.6v3.1pub. 2024-03-27upd. 2025-07-30

A vulnerability in auxiliary asynchronous port (AUX) functions of Cisco IOS XE Software could allow an authenticated, local attacker to cause an affected device to reload or stop responding. This vulnerability is due to the incorrect handling of specific ingress traffic when flow control hardware is enabled on the AUX port. An attacker could exploit this vulnerability by reverse telnetting to the AUX port and sending specific data after connecting. A successful exploit could allow the attacker to cause the device to reset or stop responding, resulting in a denial of service (DoS) condition.

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

    OS
    Cisco
    3.10.0s3.10.10s3.10.1s3.10.1xbs3.10.2s3.10.2ts3.10.3s3.10.4s3.10.5s3.10.6s3.10.7s3.10.8as3.10.8s3.10.9s3.11.0s+ 85 więcej
🟢
PATCH AVAILABLE
Vendor update available. Deploy in standard maintenance cycle.
Tags
DoS
CWE
References

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