VULNERABILITY INTELLIGENCE

CVE-2020-3557

CVSS score5.3 MEDIUM
EPSS probability0.73%
CISA KEVNot currently listed
Published2020-10-21
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Description

A vulnerability in the host input API daemon of Cisco Firepower Management Center (FMC) 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 certificate validation. An attacker could exploit this vulnerability by sending a crafted data stream to the host input daemon of the affected device. A successful exploit could allow the attacker to cause the host input daemon to restart. The attacker could use repeated attacks to cause the daemon to continuously reload, creating a DoS condition for the API.

Weakness classification

  • psirt@cisco.com: CWE-295
  • nvd@nist.gov: CWE-295

Primary references