CVE-2019-1943: Cisco SF200-24 Firmware

Medium severity, CVSS 6.1. EPSS: 9.7% chance of exploitation in the next 30 days.

A vulnerability in the web interface of Cisco Small Business 200, 300, and 500 Series Switches software could allow an unauthenticated, remote attacker to redirect a user to a malicious web page. The vulnerability is due to improper input validation of the parameters of an HTTP request. An attacker could exploit this vulnerability by intercepting a user's HTTP request and modifying it into a request that causes the web interface to redirect the user to a specific malicious URL. This type of vulnerability is known as an open redirect attack and is used in phishing attacks that get users to unknowingly visit malicious sites.

Affected products

  • Cisco SF200-24 Firmware: affected versions not specified
  • Cisco SF200-24fp Firmware: affected versions not specified
  • Cisco SF200-24p Firmware: affected versions not specified
  • Cisco SF200-48 Firmware: affected versions not specified
  • Cisco SF200-48p Firmware: affected versions not specified
  • Cisco SF300-08 Firmware: version 1.3.7.18 only
  • Cisco SF300-24 Firmware: version 1.3.7.18 only
  • Cisco SF300-24mp Firmware: version 1.3.7.18 only
  • Cisco SF300-24p Firmware: version 1.3.7.18 only
  • Cisco SF300-24pp Firmware: version 1.3.7.18 only
  • Cisco SF300-48 Firmware: version 1.3.7.18 only
  • Cisco SF300-48p Firmware: version 1.3.7.18 only
  • Cisco SF300-48pp Firmware: version 1.3.7.18 only
  • Cisco SF302-08 Firmware: version 1.3.7.18 only
  • Cisco SF302-08mp Firmware: version 1.3.7.18 only
  • Cisco SF302-08mpp Firmware: version 1.3.7.18 only
  • Cisco SF302-08p Firmware: version 1.3.7.18 only
  • Cisco SF302-08pp Firmware: version 1.3.7.18 only
  • Cisco SF500-24 Firmware: affected versions not specified
  • Cisco SF500-24p Firmware: affected versions not specified
  • Cisco SF500-48 Firmware: affected versions not specified
  • Cisco SF500-48p Firmware: affected versions not specified
  • Cisco SG200-08 Firmware: affected versions not specified
  • Cisco SG200-08p Firmware: affected versions not specified
  • Cisco SG200-10fp Firmware: affected versions not specified
  • and 32 more

Published 2019-07-17. Last modified 2026-06-17.