Security readout for executives and security teams
Plain-English summary
CVE-2019-12687 lets a logged-in remote attacker execute commands through Cisco Firepower Management Center's web UI. FMC manages security infrastructure, so compromise could affect confidentiality, integrity, and availability of the management device. The source bundle does not specify affected versions or fixed releases.
Executive priority
Treat this as high priority for environments using Cisco FMC because it affects a security management platform and can lead to command execution after authentication. Prioritize inventory, version validation, and vendor-guided remediation.
Technical view
Cisco describes an authenticated remote code execution flaw in the FMC web UI caused by insufficient input validation. CVSS v3.0 is 8.8 with network access, low privileges, no user interaction, and high impact to confidentiality, integrity, and availability. CWE is listed as CWE-119.
Likely exposure
Organizations running Cisco Firepower Management Center are potentially exposed, especially where the management web UI is reachable by broad internal networks or less-controlled admin accounts. Versions are unspecified in the provided sources.
Exploitation context
The bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation requires authenticated access to the FMC web UI, but successful exploitation allows arbitrary command execution on the affected device.
Researcher notes
Evidence is limited to the CVE and Cisco advisory metadata in the bundle. Do not assume affected version ranges, exploit maturity, or specific fixes beyond Cisco's advisory. Focus validation on exposure of FMC web UI, authenticated attack surface, and version status.
Mitigation direction
- Identify all Cisco Firepower Management Center deployments and owners.
- Check installed FMC versions against Cisco's advisory guidance.
- Apply Cisco-provided fixed software or remediation guidance where applicable.
- Restrict FMC web UI access to trusted administrative networks.
- Review administrator accounts and remove unnecessary web UI access.
Validation and detection
- Confirm whether any FMC instance exists in the environment.
- Record each FMC software version and compare with Cisco guidance.
- Verify the FMC web UI is not broadly reachable.
- Review FMC administrative access logs for unexpected activity.
- Confirm remediation status through change records or configuration evidence.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
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-2019-12687 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
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.