CVE-2020-3147
No exploitation reported by the sources we read.
- Published2020-01-30
- Fixed in1.3.7.18
- WeaknessCWE-20
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
A vulnerability in the web UI of Cisco Small Business Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper validation of requests sent to the web interface. An attacker could exploit this vulnerability by sending a malicious request to the web interface of an affected device. A successful exploit could allow the attacker to cause an unexpected reload of the device, resulting in a DoS condition. This vulnerability affects firmware releases prior than 1.3.7.18
Timeline
dates in UTC- 2020-01-3019:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-3147?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-3147?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 1.3 | < 1.3.7.18 | 1.3.7.18 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 1.3 | < 1.3.7.18 | 1.3.7.18 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 1.3 | < 1.3.7.18 | 1.3.7.18 | NVD |
54 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update Cisco sf300-08 firmware to 1.3.7.18
Advisories and patches
- tools.cisco.comVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published
- 2020-01-30
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2020-3147?
Is CVE-2020-3147 actively exploited?
What is the CVSS score for CVE-2020-3147?
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