CVE-2019-1913: Cisco Sf-220-24 Firmware

Critical severity, CVSS 9.8. EPSS: 25.9% chance of exploitation in the next 30 days.

Multiple vulnerabilities in the web management interface of Cisco Small Business 220 Series Smart Switches could allow an unauthenticated, remote attacker to overflow a buffer, which then allows the execution of arbitrary code with root privileges on the underlying operating system. The vulnerabilities are due to insufficient validation of user-supplied input and improper boundary checks when reading data into an internal buffer. An attacker could exploit these vulnerabilities by sending malicious requests to the web management interface of an affected device. Depending on the configuration of the affected switch, the malicious requests must be sent via HTTP or HTTPS.

Affected products

• Cisco Sf-220-24 Firmware: before 1.1.4.4 (fixed in 1.1.4.4)
• Cisco SF220-24p Firmware: before 1.1.4.4 (fixed in 1.1.4.4)
• Cisco SF220-48 Firmware: before 1.1.4.4 (fixed in 1.1.4.4)
• Cisco SF220-48p Firmware: before 1.1.4.4 (fixed in 1.1.4.4)
• Cisco SG220-26 Firmware: before 1.1.4.4 (fixed in 1.1.4.4)
• Cisco SG220-26p Firmware: before 1.1.4.4 (fixed in 1.1.4.4)
• Cisco SG220-28 Firmware: before 1.1.4.4 (fixed in 1.1.4.4)
• Cisco SG220-28mp Firmware: before 1.1.4.4 (fixed in 1.1.4.4)
• Cisco SG220-50 Firmware: before 1.1.4.4 (fixed in 1.1.4.4)
• Cisco SG220-50p Firmware: before 1.1.4.4 (fixed in 1.1.4.4)
• Cisco SG220-52 Firmware: before 1.1.4.4 (fixed in 1.1.4.4)

Published 2019-08-07. Last modified 2026-06-17.