CVE-2020-3121: cisco cisco 550x series stackable managed switches Cross-site Scripting
Vulnerability summary
CVE-2020-3121 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in cisco cisco 550x series stackable managed switches. EPSS estimates a 1.07% chance of exploitation in the next 30 days, higher than 64.2% of scored vulnerabilities.
Timeline
- 26-01-2020PublishedVulnerability first disclosed.
- 15-11-2024Last modifiedVulnerability information updated.
Description
A vulnerability in the web-based management interface of Cisco Small Business Smart and Managed Switches could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of the affected device. An attacker could exploit this vulnerability by persuading a user of the interface to click a malicious link and access a specific page. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.
CVSS metrics
4 scores · 2 sources · 3 versions- NVDNIST6.1MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
1.07%
Chance of exploitation in the next 30 days
Percentile
64%
Versus all other CVEs
30-day change
0.00 pp
From 1.07% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cisco46 products
- cisco 550x series stackable managed switches≥ unspecified, < n/a
- sf350-48_firmware≤ 2.5.0.90
- sf350-48mp_firmware≤ 2.5.0.90
- sf350-48p_firmware≤ 2.5.0.90
- sf550x-24_firmware≤ 2.5.0.90
1 vendor · 46 products
References
1 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200122-sbsms-xssVendor AdvisoryX Refsource CISCO