VULNERABILITY INTELLIGENCE

CVE-2019-12678

CVSS score7.5 HIGH
EPSS probability1.84%
CISA KEVNot currently listed
Published2019-10-02
Last modified2026-08-11
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

A vulnerability in the Session Initiation Protocol (SIP) inspection module of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper parsing of SIP messages. An attacker could exploit this vulnerability by sending a malicious SIP packet through an affected device. A successful exploit could allow the attacker to trigger an integer underflow, causing the software to try to read unmapped memory and resulting in a crash.

Weakness classification

  • psirt@cisco.com: CWE-191
  • nvd@nist.gov: CWE-191

Primary references