VULNERABILITY INTELLIGENCE

CVE-2024-20436

CVSS score8.6 HIGH
EPSS probability0.86%
CISA KEVNot currently listed
Published2024-09-25
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Description

A vulnerability in the HTTP Server feature of Cisco IOS XE Software when the Telephony Service feature is enabled could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to a null pointer dereference when accessing specific URLs. An attacker could exploit this vulnerability by sending crafted HTTP traffic to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, causing a DoS condition on the affected device.

Weakness classification

  • psirt@cisco.com: CWE-476
  • nvd@nist.gov: CWE-476

Primary references