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PatchSiren cyber security CVE debrief

CVE-2019-1214 Microsoft CVE debrief

CVE-2019-1214 is a Microsoft Windows privilege escalation issue in the Common Log File System (CLFS). CISA lists it in the Known Exploited Vulnerabilities catalog, which means it has been identified as actively exploited or otherwise confirmed as requiring urgent remediation. The supplied corpus does not include exploit mechanics or affected version details, so the safest response is to prioritize vendor updates and verify exposure across Windows endpoints and servers.

Vendor
Microsoft
Product
Windows
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2021-11-03
Original CVE updated
2021-11-03
Advisory published
2021-11-03
Advisory updated
2021-11-03

Who should care

Windows administrators, endpoint/security operations teams, vulnerability managers, and incident responders responsible for Microsoft Windows systems should treat this as high priority because it appears in CISA’s Known Exploited Vulnerabilities catalog.

Technical summary

The supplied records describe CVE-2019-1214 as a Microsoft Windows privilege escalation vulnerability affecting the Common Log File System (CLFS). CISA’s KEV entry is the strongest evidence available here; it indicates the issue is known to be exploited and that remediation should follow vendor guidance. No CVSS score, exploit chain, affected build list, or deeper technical root-cause details were included in the provided corpus.

Defensive priority

High. CISA KEV inclusion makes this a remediation-priority vulnerability even though the supplied corpus does not provide a CVSS score or detailed impact breakdown.

Recommended defensive actions

  • Apply Microsoft updates per vendor instructions as soon as possible.
  • Inventory Windows assets to identify systems that may still be unpatched.
  • Use vulnerability management and endpoint detection tooling to confirm remediation status.
  • Prioritize internet-facing, high-value, and user-workstation Windows systems first.
  • Track CISA KEV remediation deadlines and escalate any overdue hosts.

Evidence notes

The description and title come from the supplied CVE and CISA KEV records. The KEV entry explicitly names Microsoft Windows, the vulnerability class (Common Log File System, CLFS, privilege escalation), the date added (2021-11-03), the due date (2022-05-03), and the required action: apply updates per vendor instructions. No additional exploit details were provided in the corpus, so this debrief avoids unsupported claims.

Sources and references

Verified primary and authoritative sources

  • CVE-2019-1214 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2019-1214

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2019-1214 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2019-1214

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.