Security Resilience

CVE-2019-1214

Memory Safety in Microsoft Windows 10 1709

CISA KEVActive ExploitationEUVD ExploitedMemory Safety
Published
11 September 2019
Modified
29 October 2025
KEV Added
03 November 2021
Patch / advisory
CVSS Score v3.1 7.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.014 72th percentile
Risk Priority 83 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2019-1214 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Microsoft Windows 10 1709. Its CVSS base score is 7.8 (High).

Operationally, ranked in the top 28% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

An elevation of privilege vulnerability exists in the Windows Common Log File System (CLFS) driver, which improperly handles objects in memory. The affected component is the CLFS driver present in Windows operating systems, as identified by the CVE-2019-1214 advisory published in September 2019. The issue carries a CVSS 3.1 base score of 7.8 and is associated with CWE-119.

Local attackers with low privileges can exploit the flaw without user interaction to obtain full elevation of privileges on an affected system, resulting in complete control over confidentiality, integrity, and availability of the target.

Microsoft published security guidance addressing the vulnerability through its advisory portal, while the CISA Known Exploited Vulnerabilities catalog lists CVE-2019-1214 as actively used in real-world attacks, underscoring the need for prompt application of available updates.

EU & UK References

Vulnerability Data

An elevation of privilege vulnerability exists when the Windows Common Log File System (CLFS) driver improperly handles objects in memory, aka 'Windows Common Log File System Driver Elevation of Privilege Vulnerability'.

CWE(s)
KEV Date Added
03 November 2021

Related Threats

CVEs Like This One

CVE-2019-1215Same product: Microsoft Windows 10 1507both on KEV
CVE-2019-0903Same product: Microsoft Windows 10 1507both on KEV
CVE-2019-0863Same product: Microsoft Windows 10 1507both on KEV
CVE-2021-31979Same product: Microsoft Windows 10 1507both on KEV
CVE-2019-1405Same product: Microsoft Windows 10 1507both on KEV
CVE-2017-0022Same product: Microsoft Windows 10 1507both on KEV
CVE-2019-1130Same product: Microsoft Windows 10 1507both on KEV
CVE-2019-1388Same product: Microsoft Windows 10 1507both on KEV
CVE-2020-0787Same product: Microsoft Windows 10 1507both on KEV
CVE-2020-1054Same product: Microsoft Windows 10 1507both on KEV

Affected Assets

microsoft
windows 10 1507
all versions
microsoft
windows 10 1607
all versions
microsoft
windows 10 1703
all versions
microsoft
windows 10 1709
all versions
microsoft
windows 10 1803
all versions
microsoft
windows 10 1809
all versions
microsoft
windows 10 1903
all versions
microsoft
windows 7
all versions
microsoft
windows 8.1
all versions
microsoft
windows rt 8.1
all versions
+6 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-119

Ongoing control assessments and code testing (static/dynamic analysis, fuzzing) surface memory buffer restriction failures, which are then remediated before release.

addresses: CWE-119

Managed runtimes used by platform-independent applications (e.g., JVM, CLR) enforce memory safety, preventing most buffer overflows that require direct memory manipulation.

addresses: CWE-119

Memory protections (e.g., W^X, ASLR) make exploitation of buffer-boundary violations far harder to turn into code execution.

addresses: CWE-119

Detects exploitation attempts that produce memory corruption, crashes, or anomalous behavior.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

blocks

A.8.25 mandates secure SDLC practices (secure coding guidelines, security requirements, testing including code scans and penetration tests, developer training) that reach buffer management and can stop many buffer overruns from reaching production, but leaves a bounded remainder (e.g. flaws in non-software components, incomplete enforcement of guidelines, or post-deployment changes)

blocks

Application security requirements can specify memory-safety rules, but do not prescribe implementation details.

blocks

A.8.27 mandates security-by-design principles (e.g. least privilege, fail securely, distrust external input, hardening) plus design reviews that can catch and stop buffer-boundary errors before they reach code, but this is only one minority slice of CWE-119's broad surface (language-specific flaws, unsafe library use, compiler/runtime mitigations, and post-deployment instances remain outside its direct scope).

prevents

Secure coding standards explicitly forbid unsafe buffer operations, directly eliminating CWE-119.

finds

Security testing in development catches out-of-bounds accesses before release, covering most instances of the weakness.

Hardening callouts derived

DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.

  • No fine-grained STIG row for CWE-119, a class-level weakness. Rules are authored against its narrower children: CWE-823.

References