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CVE-2019-1912

CRITICAL

A vulnerability in the web management interface of Cisco Small Business 220 Series Smart Switches could allow an unauthenticated, remote attacker to upload arbitrary files. The vulnerability is due to incomplete authorization checks in the web management interface. An attacker could exploit this vulnerability by sending a malicious request to certain parts of the web management interface. Depending on the configuration of the affected switch, the malicious request must be sent via HTTP or HTTPS. A successful exploit could allow the attacker to modify the configuration of an affected device or to inject a reverse shell. This vulnerability affects Cisco Small Business 220 Series Smart Switches running firmware versions prior to 1.1.4.4 with the web management interface enabled. The web management interface is enabled via both HTTP and HTTPS by default.

Published: Aug 7, 2019 Modified: Jun 17, 2026
CWE-285 CWE-863

CVSS Metrics

CVSSv3
Attack Vector: NETWORK Attack Complexity: LOW Privileges Required: NONE User Interaction: NONE Scope: UNCHANGED Confidentiality Impact: NONE Integrity Impact: HIGH Availability Impact: HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Affected Products (11)

Vendor Product Version
cisco sf-220-24_firmware * < 1.1.4.4
cisco sf220-24p_firmware * < 1.1.4.4
cisco sf220-48_firmware * < 1.1.4.4
cisco sf220-48p_firmware * < 1.1.4.4
cisco sg220-26_firmware * < 1.1.4.4
cisco sg220-26p_firmware * < 1.1.4.4
cisco sg220-28_firmware * < 1.1.4.4
cisco sg220-28mp_firmware * < 1.1.4.4
cisco sg220-50_firmware * < 1.1.4.4
cisco sg220-50p_firmware * < 1.1.4.4
cisco sg220-52_firmware * < 1.1.4.4

GitHub Security Advisory GHSA-q6mv-m62h-7q28

A vulnerability in the web management interface of Cisco Small Business 220 Series Smart Switches...

References (4)

Risk Scores

CVSS Score 9.1 / 10
EPSS Score 17.04%

Top 3% most likely to be exploited

Threat Score 41.5 / 100

Data Sources

NVD EPSS GitHub