Cisco Small Business Series Switches Buffer Overflow Vulnerabilities
Published May 18, 2023
9.8
CRITICALCVSS 3.1
EPSS 10.28%
Description
Multiple vulnerabilities in the web-based user interface of certain Cisco Small Business Series Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with root privileges on an affected device. These vulnerabilities are due to improper validation of requests that are sent to the web interface. For more information about these vulnerabilities, see the Details section of this advisory.
Affected products
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||
|---|---|---|---|---|---|---|
| Cisco | Cisco Small Business Smart and Managed Switches | n/a |
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- Version 0StatusaffectedConstraints<2.5.9.16
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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Cisco | 250 Series Smart Switches Firmware | n/a |
| ||||||
| Cisco | 350 Series Managed Switches Firmware | affected |
| ||||||
| Cisco | 350x Series Stackable Managed Switches Firmware | affected |
| ||||||
| Cisco | 550x Series Stackable Managed Switches Firmware | n/a |
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| Cisco | Business 250 Series Smart Switches Firmware | n/a |
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| Cisco | Business 350 Series Managed Switches Firmware | n/a |
| ||||||
| Cisco | Small Business 200 Series Smart Switches Firmware | n/a |
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| Cisco | Small Business 300 Series Managed Switches Firmware | n/a |
| ||||||
| Cisco | Small Business 500 Series Stackable Managed Switches Firmware | n/a |
|
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (CVE.org) ▾
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Oct 28, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.
Score over time
2023-2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 10.28% (0.10282) | 95.57th | v5 (v2026.06.15) |
| Jun 15, 2026 | 10.28% (0.10282) | 95.09th | v5 (v2026.06.15) |
| Jun 7, 2026 | 2.13% (0.02134) | 84.53th | v4 (v2025.03.14) |
| May 31, 2026 | 5.31% (0.05313) | 90.18th | v4 (v2025.03.14) |
| Nov 21, 2025 | 3.34% (0.03336) | 86.81th | v4 (v2025.03.14) |
| Nov 18, 2025 | 1.67% (0.01668) | 80.59th | v4 (v2025.03.14) |
| Mar 30, 2025 | 3.34% (0.03336) | 86.15th | v4 (v2025.03.14) |
| Mar 29, 2025 | 8.58% (0.08581) | 87.14th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.34% (0.03336) | 86.46th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.21% (0.00211) | 59.99th | v3 (v2023.03.01) |
| Jun 19, 2024 | 0.20% (0.00202) | 58.44th | v3 (v2023.03.01) |
| May 24, 2024 | 0.23% (0.00231) | 61.14th | v3 (v2023.03.01) |
| Apr 17, 2024 | 0.17% (0.00165) | 52.65th | v3 (v2023.03.01) |
| May 27, 2023 | 0.18% (0.00179) | 53.72th | v3 (v2023.03.01) |
| May 18, 2023 | 0.04% (0.00045) | 12.53th | v3 (v2023.03.01) |
References (1)
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sg-web-multi-S9g4Nkgv vendor-advisoryVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sg-web-multi-S9g4Nkgv | vendor-advisoryVendor Advisory |
Change history (0)
No recorded changes yet.