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Public proof of conceptFix available

CVE-2019-1912

A public proof of concept exists; no exploitation attested.

  • Published2019-08-07
  • Fixed in1.1.4.4
  • WeaknessCWE-285 · CWE-863

Am I 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 management interface of Cisco Small Business 220 Series Smart Switches could allow an unauthenticated, remote attacker to upload arbitrary files. The vulnerability is due to incomplete authorization checks in the web management interface. An attacker could exploit this vulnerability by sending a malicious request to certain parts of the web management interface. Depending on the configuration of the affected switch, the malicious request must be sent via HTTP or HTTPS. A successful exploit could allow the attacker to modify the configuration of an affected device or to inject a reverse shell. This vulnerability affects Cisco Small Business 220 Series Smart Switches running firmware versions prior to 1.1.4.4 with the web management interface enabled. The web management interface is enabled via both HTTP and HTTPS by default.

Timeline

dates in UTC
  1. 2019-09-30Exploit-DB entryExploit-DB

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-1912?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-1912?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Cisco sf-220-24 firmwareversion to verify
BranchAffectedFixed in
1.1< 1.1.4.41.1.4.4
Cisco sf220-24p firmwareversion to verify
BranchAffectedFixed in
1.1< 1.1.4.41.1.4.4
Cisco sf220-48 firmwareversion to verify
BranchAffectedFixed in
1.1< 1.1.4.41.1.4.4

8 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As cisco, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Cisco Small Business 220 Series Smart Plus Switches
    Affected
    • < 1.1.4.4fixed in 1.1.4.4custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2019-10-01

Fix

  1. Update Cisco sf-220-24 firmware to 1.1.4.4

Advisories and patches

Detection

read 2026-11-03 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-47442
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionnone2024-11-19
  • OpenCVESSVC decisionnone—
  • NVDCVSS 3.19.1read 2026-10-23
  • CNACVSS 3.09.1known since 2026-10-23
  • NVDCVSS 2.06.4read 2026-10-23
  • CNAweakness (CWE)CWE-285known since 2026-10-23
  • NVDweakness (CWE)CWE-863read 2026-10-23
  • FIRST EPSSEPSS score17.0 %read 2026-11-03
  • Exploit-DBdetectionread 2026-11-03
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Published
2019-08-07
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-q6mv-m62h-7q28

Frequently asked questions

What is CVE-2019-1912?

A vulnerability in the web management interface of Cisco Small Business 220 Series Smart Switches could allow an unauthenticated, remote attacker to upload arbitrary files. The vulnerability is due to incomplete authorization checks in the web management interface. An attacker could exploit this vulnerability by sending a malicious request to certain parts of the web management interface. Depending on the configuration of the affected switch, the malicious request must be sent via HTTP or HTTPS. A successful exploit could allow the attacker to modify the configuration of an affected device or to inject a reverse shell. This vulnerability affects Cisco Small Business 220 Series Smart Switches running firmware versions prior to 1.1.4.4 with the web management interface enabled. The web management interface is enabled via both HTTP and HTTPS by default.

Is CVE-2019-1912 actively exploited?

Active exploitation of CVE-2019-1912 has not been confirmed. Its EPSS score was 17.0% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-1912?

CVE-2019-1912 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

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