Security readout for executives and security teams
Plain-English summary
Cisco Firepower Threat Defense may mishandle application policy identification, letting an unauthenticated remote attacker send crafted traffic and read sensitive data they should not see. The bundle rates this Medium with confidentiality impact only. Affected release ranges and fixes are not included here, so teams should verify exposure against Cisco’s advisory and their FTD inventory.
Executive priority
Treat as a moderate confidentiality risk. Prioritize internet-facing or high-trust boundary FTD deployments, but do not treat it as emergency active exploitation based on the supplied evidence.
Technical view
The flaw is in FTD application policy configuration and is attributed to insufficient application identification, CWE-284. CVSS 3.0 is 5.8: network-reachable, low complexity, no privileges, no user interaction, scope changed, low confidentiality impact, and no integrity or availability impact. Successful exploitation provides unauthorized read access to sensitive data.
Likely exposure
Exposure is limited to Cisco Firepower Threat Defense Software deployments matching Cisco’s affected criteria. The supplied bundle lists versions as unspecified, so product presence alone is not enough to confirm vulnerability.
Exploitation context
The source bundle describes unauthenticated remote exploitation through crafted traffic. It does not cite active exploitation, public exploit availability, or CISA KEV listing. KEV is false in the provided data.
Researcher notes
Evidence is concise and incomplete for version mapping. Focus research on Cisco advisory details, application identification behavior, policy conditions, and whether sensitive data exposure is reachable in deployed network paths.
Mitigation direction
- Identify all Cisco Firepower Threat Defense Software deployments and versions.
- Review Cisco’s advisory for affected and fixed release guidance.
- Apply vendor-recommended updates or mitigations where applicable.
- Restrict untrusted traffic paths to FTD management and sensitive policy surfaces where possible.
Validation and detection
- Compare deployed FTD versions against Cisco’s advisory.
- Review firewall and policy configuration for affected application policy usage.
- Check security logs for unusual crafted or anomalous traffic patterns.
- Confirm remediation status after applying Cisco guidance.
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-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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 lookupCVE-2019-12627 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
- Medium
- CVSS
- 5.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
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:N/UI:N/S:C/C:L/I:N/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
5.8MediumVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- 20190821 Cisco Firepower Threat Defense Software Information Disclosure 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 Access Control
Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.