CS
Product
Cisco Small Business Smart and Managed Switches
by Cisco · last CVE May 6, 2026
14
CVEs
0
On KEV
9.8
Max CVSS
0
New 30D
Severity mix
Critical 8High 4Medium 2Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2023-20161
9.8
11%
May 18
Cisco Small Business Series Switches Buffer Overflow Vulnerabilities
Affected: All versions, or not specified
CVE-2023-20189
9.8
12%
May 18
Cisco Small Business Series Switches Buffer Overflow Vulnerabilities
Affected: All versions, or not specified
CVE-2023-20162
9.8
2%
May 18
Cisco Small Business Series Switches Buffer Overflow Vulnerabilities
Affected: All versions, or not specified
CVE-2023-20156
9.8
2%
May 18
Cisco Small Business Series Switches Buffer Overflow Vulnerabilities
Affected: All versions, or not specified
CVE-2023-20157
9.8
2%
May 18
Cisco Small Business Series Switches Buffer Overflow Vulnerabilities
Affected: All versions, or not specified
CVE-2023-20158
9.8
2%
May 18
Cisco Small Business Series Switches Buffer Overflow Vulnerabilities
Affected: All versions, or not specified
CVE-2023-20159
9.8
11%
May 18
Cisco Small Business Series Switches Buffer Overflow Vulnerabilities
Affected: All versions, or not specified
CVE-2023-20160
9.8
11%
May 18
Cisco Small Business Series Switches Buffer Overflow Vulnerabilities
Affected: All versions, or not specified
CVE-2021-34739
8.1
2%
Nov 4
Cisco Small Business Series Switches Session Credentials Replay Vulnerability
Affected: All versions, or not specified
CVE-2026-20185
7.7
0%
May 6
Cisco SG350 and SG350X Series Managed Switches SNMP Denial of Service Vunerability
Affected: 2.5.9.54; 2.5.9.55
CVE-2023-20024
7.5
2%
May 18
Cisco Small Business Series Switches Buffer Overflow Vulnerabilities
Affected: All versions, or not specified
CVE-2024-20263
7.2
0%
Jan 26
A vulnerability with the access control list (ACL) management within a stacked switch configuration of Cisco Business 250 Series Smart Switches and Business 350 Series Managed…
Affected: 2.0.0.73; 2.1.0.63; 2.2.0.63; 2.2.0.66; 2.2.5.68; 2.2.7.07; +28 more
CVE-2021-40127
5.3
1%
Nov 4
Cisco Small Business 200, 300, and 500 Series Switches Web-Based Management Interface Denial of Service Vulnerability
Affected: All versions, or not specified
CVE-2023-20188
4.8
0%
Jun 28
A vulnerability in the web-based management interface of Cisco Small Business 200 Series Smart Switches, Cisco Small Business 300 Series Managed Switches, and Cisco Small Business…
Affected: 1.0.0.16; 1.0.0.19; 1.0.0.27; 1.0.1.0; 1.0.2.0; 1.0.3.3; +31 more
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