Security readout for executives and security teams
Plain-English summary
CVE-2019-1214 is a Windows privilege escalation flaw in the Common Log File System driver. It lets a local low-privileged attacker gain high-impact control over confidentiality, integrity, and availability. Because CISA lists it in KEV, treat unpatched affected Windows systems as actively targeted and prioritize remediation.
Executive priority
High priority for patch compliance, especially on legacy Windows and server assets. KEV status means this should not wait for routine maintenance if affected systems remain unpatched.
Technical view
The flaw is an improper memory object handling issue in the Windows CLFS driver, mapped to CWE-119. CVSS 3.1 is 7.8: local attack vector, low complexity, low privileges, no user interaction, unchanged scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is mainly Windows endpoints and servers running the affected versions listed by Microsoft, including Windows 7, 8.1, multiple Windows 10 releases, and Windows Server 2008 through 2019 variants.
Exploitation context
CISA KEV listing supports known exploitation. The provided sources do not describe exploit mechanics, scale, or current campaign details. This is not a remote initial-access issue; it is more relevant after an attacker already has local code execution or low-privileged access.
Researcher notes
The source bundle supports affected-product scope, CVSS, CWE-119, and KEV status. It does not provide root-cause detail beyond improper memory object handling in CLFS, nor does it provide safe detection indicators or exploit telemetry.
Mitigation direction
- Apply the relevant Microsoft security guidance or updates for CVE-2019-1214.
- Prioritize affected Windows systems listed in CISA KEV.
- Retire or isolate unsupported Windows versions where patching is unavailable.
- Use normal endpoint hardening to reduce local code execution opportunities.
Validation and detection
- Inventory Windows desktop and server versions against Microsoft’s affected product list.
- Confirm applicable Microsoft updates are installed on affected systems.
- Check vulnerability management results for CVE-2019-1214 closure.
- Review KEV-driven remediation tracking for any remaining unpatched hosts.
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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-1214 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
- 7.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:L/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.
CISA KEV status
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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1214CVE reference · x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1214CVE reference · government-resource
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.