Security readout for executives and security teams
Plain-English summary
This flaw lets a logged-in administrator of a Cisco Small Business 220 Series switch abuse the web management interface to run operating-system commands as root. It is serious because a compromised or misused privileged account could lead to full device control, but the sources say the attacker needs an authenticated privilege level 15 session.
Executive priority
Prioritize this for environments using Cisco 220 Series switches, especially where management interfaces are broadly reachable. It is not evidenced as actively exploited in the provided sources, but successful abuse gives root-level device control and could affect network availability and trust.
Technical view
CVE-2019-1914 is an authenticated remote command injection in the Cisco Small Business 220 Series web management interface. Cisco attributes it to insufficient validation of user-supplied input. Exploitation requires a valid privilege level 15 login session and access over HTTP or HTTPS, depending on device configuration. Successful exploitation can execute arbitrary shell commands as root.
Likely exposure
Exposure is most likely where Cisco Small Business 220 Series Smart Plus Switches are deployed and their web management interface is reachable by administrators or broader networks. Risk increases if privileged credentials are shared, weak, or exposed. The provided sources do not specify affected firmware versions.
Exploitation context
The bundle does not show CISA KEV listing or cited evidence of active exploitation. Practical exploitation requires authenticated, high-privilege access to the web management interface, so this is more likely after credential compromise, insider misuse, or poor management-plane isolation.
Researcher notes
The key constraints are authenticated remote access, privilege level 15, and web management reachability. The source bundle does not include precise affected firmware ranges or a named fixed version. Avoid assuming unauthenticated exploitability or current exploitation without additional evidence.
Mitigation direction
- Check Cisco's advisory for affected releases and fixed software guidance.
- Restrict switch web management access to trusted administrative networks only.
- Review privilege level 15 accounts and remove unnecessary access.
- Disable unused HTTP or HTTPS management paths where operationally feasible.
- Rotate exposed or shared administrator credentials.
- Monitor vendor guidance if affected firmware details are unclear.
Validation and detection
- Inventory Cisco Small Business 220 Series Smart Plus Switches.
- Identify firmware versions and compare them with Cisco advisory guidance.
- Confirm whether web management is reachable over HTTP or HTTPS.
- Review privilege level 15 account assignments and recent logins.
- Check device logs for unusual administrative web management activity.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-1914 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.2 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H1.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7.2HighVector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20190806 Cisco Small Business 220 Series Smart Switches Command Injection VulnerabilityCVE reference · vendor-advisory, x_refsource_CISCO
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.