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Vulnerability record · CVE-2019-15993 · published 23 September 2020

CVE-2019-15993: Cisco sg250x-24 firmware improper authentication vulnerability

Cisco · Sg250x 24 Firmware

A vulnerability in the web UI of Cisco Small Business Switches could allow an unauthenticated, remote attacker to access sensitive device information. The vulnerability exists because the software lacks proper authentication controls to information accessible from the web UI. An attacker could exploit this vulnerability by sending a malicious HTTP request to the web UI of an affected device. A successful exploit could allow the attacker to access sensitive device information, which includes configuration files.

5.3 CVSS 3.1 Medium EPSS 10% · top 4.5% CWE-16 · CWE-16CWE-287 · Improper authentication
5.3CVSS 3.1 base score, v2 5.0
10%EPSS exploitation probability, 30 days
NoNot in CISA KEV
114Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

A vulnerability in the web UI of Cisco Small Business Switches could allow an unauthenticated, remote attacker to access sensitive device information. The vulnerability exists because the software lacks proper authentication controls to information accessible from the web UI. An attacker could exploit this vulnerability by sending a malicious HTTP request to the web UI of an affected device. A successful exploit could allow the attacker to access sensitive device information, which includes configuration files.

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

Affected products

114 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/171723/Cisco-Dell-Netgear-Information-Disclosure-Hash-Decrypter.html
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200129-smlbus-switch-disclos Vendor Advisory
http://packetstormsecurity.com/files/171723/Cisco-Dell-Netgear-Information-Disclosure-Hash-Decrypter.html
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200129-smlbus-switch-disclos Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-15993), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.