VULNERABILITY INTELLIGENCE

CVE-2019-1921

CVSS score5.8 MEDIUM
EPSS probability1.41%
CISA KEVNot currently listed
Published2019-07-06
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Description

A vulnerability in the attachment scanning of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass configured content filters on the device. The vulnerability is due to improper input validation of the email body. An attacker could exploit this vulnerability by naming a malicious attachment with a specific pattern. A successful exploit could allow the attacker to bypass configured content filters that would normally block the attachment.

Weakness classification

  • psirt@cisco.com: CWE-20
  • nvd@nist.gov: CWE-20

Primary references