Security readout for executives and security teams
Plain-English summary
Cisco Firepower Management Center had a high-severity web UI flaw that could let a logged-in remote attacker run commands on the device. Because FMC manages security infrastructure, compromise could affect confidentiality, integrity, and availability of a critical control plane.
Executive priority
Treat as high priority where FMC is deployed, especially if the web UI is reachable beyond tightly controlled admin networks. A successful compromise could undermine management of security controls, not just a single endpoint.
Technical view
CVE-2019-12688 is an authenticated remote command execution vulnerability in Cisco FMC's web UI caused by insufficient input validation. CVSS 3.0 is 8.8, with network access, low attack complexity, low privileges, no user interaction, and high impact across confidentiality, integrity, and availability.
Likely exposure
Exposure is likely limited to organizations running Cisco Firepower Management Center with web UI access available to authenticated users. The source bundle does not provide exact affected versions, so teams must map deployed FMC versions against Cisco's advisory.
Exploitation context
The bundle does not state active exploitation, and KEV status is false. Exploitation requires valid authenticated access to the FMC web UI, but does not require user interaction and is described as low complexity.
Researcher notes
The provided data names Cisco FMC and an authenticated web UI RCE, but lists affected versions as unspecified. Analysis should avoid assuming product branches, exploit availability, or fixes beyond the Cisco advisory until the advisory is reviewed directly.
Mitigation direction
- Consult Cisco's advisory and apply vendor-recommended fixed software or mitigations.
- Restrict FMC web UI access to trusted administrative networks and VPN paths.
- Remove unnecessary FMC web UI accounts and enforce strong authentication controls.
- Monitor FMC for suspicious authenticated web UI activity until remediation is complete.
Validation and detection
- Identify all Cisco FMC instances and their management-interface network exposure.
- Compare installed FMC releases with Cisco's advisory for affected and fixed versions.
- Review privileged and non-privileged accounts with FMC web UI access.
- Check FMC logs for suspicious authenticated web UI activity or unexpected command execution indicators.
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
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CWE-119: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
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-2019-12688 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:L/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:L/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.8HighVector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20191002 Cisco Firepower Management Center Remote Code Execution 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 Restriction of Operations within the Bounds of a Memory Buffer
Improper Restriction of Operations within the Bounds of a Memory Buffer represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.