Vulnerability Database

311,447

Total vulnerabilities in the database

CVE-2019-1884

A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation mechanisms for certain fields in HTTP/HTTPS requests sent through an affected device. A successful attacker could exploit this vulnerability by sending a malicious HTTP/HTTPS request through an affected device. An exploit could allow the attacker to force the device to stop processing traffic, resulting in a DoS condition.

  • Published: Jul 4, 2019
  • Updated: Nov 9, 2025
  • CVE: CVE-2019-1884
  • Severity: Low
  • Exploit:

CVSS v2:

  • Severity: Low
  • Score: 4
  • AV:N/AC:L/Au:S/C:N/I:N/A:P

CWEs:

Software From Fixed in
cisco / asyncos 11.5 11.5.2-020
cisco / asyncos 10.1 10.5.5-005
cisco / asyncos 11.7 11.7.0-407
cisco / web_security_appliance 10.5.2-072 10.5.2-072.x
cisco / web_security_appliance 11.5.1-fcs-125 11.5.1-fcs-125.x
cisco / web_security_appliance 10.1.4-017 10.1.4-017.x
cisco / web_security_appliance 11.7.0-256 11.7.0-256.x