CVE-2019-0574: Microsoft Windows Server 2016: Improper Link Resolution Before File Access ('Link Following')

Recommended actionWithin 7 days

High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available

What, why and how

An elevation of privilege vulnerability exists when the Windows Data Sharing Service improperly handles file operations, aka "Windows Data Sharing Service Elevation of Privilege Vulnerability." This affects Windows Server 2016, Windows 10, Windows Server 2019, Windows 10 Servers. This CVE ID is unique from CVE-2019-0571, CVE-2019-0572, CVE-2019-0573.

What

Why

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

How

An attacker operating through local access may attempt exploitation without authentication after a user interaction. If successful, the issue may gain additional privileges.

What

Why

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

How

An attacker operating through local access may attempt exploitation without authentication after a user interaction. If successful, the issue may gain additional privileges.

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path: local access → Improper Link Resolution Before File Access ('Link Following') → gain additional privileges
Attack surface: Local
Privileges required: None: unauthenticated exploitation is possible
User interaction: Required interaction required
Attack complexity: Low: no specialised conditions are recorded
Security boundary: Unchanged: impact remains within the vulnerable component's security authority
Weakness ? CWE means Common Weakness Enumeration: a standard category for the underlying weakness.: CWE-59 ↗
CWE-59: Improper Link Resolution Before File Access ('Link Following'). The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Common Vulnerability Scoring System 3.0: the compact vector below is decoded into plain language.
AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land: The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.

UnauthenticatedPrivilege escalationCWE-59Public exploit reference

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2019-1341Official EUVD mapping

0 linked advisory records.

Official EUVD record ↗

CERT-FR · French · CERTFR-2019-AVI-009Multiples vulnérabilités dans Microsoft Windows

.cve.org/CVERecord?id=CVE-2019-0552 Référence CVE CVE-2019-0553 https://www.cve.org/CVERecord?id=CVE-2019-0553 Référence CVE CVE-2019-0554 https://www.cve.org/CVERecord?id=CVE-2019-0554 Référence CVE CVE-2019-0555 https://www.cve.org/CVERecord?id=CVE-2019-0555 Référence CVE CVE-2019-0569 https://www.cve.org/CVERecord?id=CVE-2019-0569 Référence CVE CVE-2019-0570 https://www.cve.org/CVERecord?id=CVE-2019-0570 Référence CVE CVE-2019-0571 https://www.cve.org/CVERecord?id=CVE-2019-0571 Référence CVE CVE-2019-0572 https://www.cve.org/CVERecord?id=CVE-2019-0572 Référence CVE CVE-2019-0573 https://www.cve.org/CVERecord?id=CVE-2019-0573 Référence CVE CVE-2019-0574 https://www.cve.org/CVERecord?id=CVE-2019-0574 Référence CVE CVE-2019-0575 https://www.cve.org/CVERecord?id=CVE-2019-0575 Référence CVE CVE-2019-0576 https://www.cve.org/CVERecord?id=CVE-2019-0576 Référence CVE CVE-2019-0577 https://www.cve.org/CVERecord?id=CVE-2019-0577 Référence CVE CVE-2019-0578 https://www.cve.org/CVERecord?id=CVE-2019-0578 Référence CVE CVE-2019-0579 https://www.cve.org/CVERecord?id=CVE-2019-0579 Référence CVE CVE-2019-0580 https://www.cve.org/CVERecord?id=CVE-2019-0580 Référence CVE CVE-2019-0581 https://www.cve.org/CVERecord?id=CVE-2019-0581 Référence CVE CVE-2019-0582 https://www.cve.org/CVERecord?id=CVE-2019-0582 Ré

Official advisory ↗

JVN iPedia · Japanese · JVNDB-2019-001038複数の Microsoft Windows 製品における権限を昇格される脆弱性

複数の Microsoft Windows 製品には、Windows データ共有サービスがファイル操作を適切に処理しない場合、権限を昇格される脆弱性が存在します。ベンダは、本脆弱性を「Windows データ共有サービスの特権の昇格の脆弱性」として公開しています。本脆弱性は、CVE-2019-0571、CVE-2019-0572、CVE-2019-0573 とは異なる脆弱性です。

Official advisory ↗

JVN iPedia · Japanese · JVNDB-2019-001037複数の Microsoft Windows 製品における権限を昇格される脆弱性

Official advisory ↗

JVN iPedia · Japanese · JVNDB-2019-001036複数の Microsoft Windows 製品における権限を昇格される脆弱性

複数の Microsoft Windows 製品には、Windows データ共有サービスがファイル操作を適切に処理しない場合、権限を昇格される脆弱性が存在します。ベンダは、本脆弱性を「Windows データ共有サービスの特権の昇格の脆弱性」として公開しています。本脆弱性は、CVE-2019-0571、CVE-2019-0573、CVE-2019-0574 とは異なる脆弱性です。

Official advisory ↗

JVN iPedia · Japanese · JVNDB-2019-001035複数の Microsoft Windows 製品における権限を昇格される脆弱性

複数の Microsoft Windows 製品には、Windows データ共有サービスがファイル操作を適切に処理しない場合、権限を昇格される脆弱性が存在します。ベンダは、本脆弱性を「Windows データ共有サービスの特権の昇格の脆弱性」として公開しています。本脆弱性は、CVE-2019-0572、CVE-2019-0573、CVE-2019-0574 とは異なる脆弱性です。

Official advisory ↗

KISA KrCERT/CC · Korean · KNVD-4967MS 1월 보안 위협에 따른 정기 보안 업데이트 권고

- 권한상승 취약점(CVE-2019-0543,CVE-2019-0552,CVE-2019-0566,CVE-2019-0570,CVE-2019-0571,CVE-2019-0572,CVE-2019-0573,CVE-2019-0574)

Official advisory ↗

Patch and workaround

Operational remediation based on structured source evidence.

Status ? Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.: Patch available
Affected: Windows Server 2016: (Server Core installation)
Windows 10: 32-bit Systems, Version 1607 for 32-bit Systems, Version 1607 for x64-based Systems, Version 1703 for 32-bit Systems, Version 1703 for x64-based Systems, Version 1709 for 32-bit Systems, Version 1709 for ARM64-based Systems, Version 1709 for x64-based Systems, Version 1803 for 32-bit Systems, Version 1803 for ARM64-based Systems, Version 1803 for x64-based Systems, Version 1809 for 32-bit Systems, Version 1809 for ARM64-based Systems, Version 1809 for x64-based Systems, x64-based Systems
Windows Server 2019: (Server Core installation)
Windows 10 Servers: version 1709 (Server Core Installation), version 1803 (Server Core Installation)
Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action: Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround: No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.

Evidence and provenance

Published 8 Jan 2019 · Last source change 4 Aug 2024, 17:51 UTC · CWE-59 · Improper Link Resolution Before File Access ('Link Following')

CVE recordCVE.org · 5.1

CVSS sourceNIST NVD

EPSS source

The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.

FIRST · tracked since 2026-09-01

European sourceENISA EUVD · EUVD-2019-1341

Product sourceCNA

Remediation sourceCVE/CNA references

CWE sourceNIST NVD

NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗

1 Sep 2026, 02:42 UTC
ENISA EUVD mappingEUVD-2019-1341 was added to the official ENISA EUVD mapping for this CVE.
Before
not recorded
After
{"euvdId":"EUVD-2019-1341"}
ENISA EUVD ↗
4 Aug 2024, 17:51 UTC
Vendor guidanceAuthoritative vendor guidance changed: added patch: portal.msrc.microsoft.com/CVE-2019-0574; added remediation: portal.msrc.microsoft.com/CVE-2019-0574.
Before
no authoritative guidance recorded
After
patch: portal.msrc.microsoft.com/CVE-2019-0574 · remediation: portal.msrc.microsoft.com/CVE-2019-0574
portal.msrc.microsoft.com ↗
4 Aug 2024, 17:51 UTC
Affected versionsThe structured affected or fixed version information changed.
Before
(Server Core installation); 32-bit Systems; Version 1607 for 32-bit Systems; Version 1607 for x64-based Systems; Version 1703 for 32-bit Systems; Version 1703 for x64-based Systems; Version 1709 for 32-bit Systems; Version 1709 for ARM64-based Systems · Fixed: No fixed version is explicitly recorded in the structured CVE data.
After
(Server Core installation); 32-bit Systems; Version 1607 for 32-bit Systems; Version 1607 for x64-based Systems; Version 1703 for 32-bit Systems; Version 1703 for x64-based Systems; Version 1709 for 32-bit Systems; Version 1709 for ARM64-based Systems · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
CNA ↗
4 Aug 2024, 17:51 UTC
Remediation statusRemediation status changed from Awaiting fix to Patch available.
Before
Awaiting fix
After
Patch available
portal.msrc.microsoft.com ↗
4 Aug 2024, 17:51 UTC
SeveritySeverity changed from Unknown to High.
Before
Unknown
After
High
NIST NVD ↗
4 Aug 2024, 17:51 UTC
CVSS scoreCVSS score changed from not recorded to 7.8 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
Before
not recorded
After
7.8 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
NIST NVD ↗
4 Aug 2024, 17:51 UTC
Catalogue recordCVE added to the BlackTree catalogue.
CNA ↗

2019-01-08CVE published

2024-08-04Fixed release or patch reference recorded

ENISA EUVD · EUVD-2019-1341↗Patch or update reference↗CVE authority or vendor reference↗Public exploit reference↗Official CVE record (CNA and ADP data)↗NVD record↗

Technical terms and abbreviations used in this report

CVE: Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS: Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS: Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE: Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA: CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP: Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD: National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT: A computer security incident response team that publishes warnings or coordinates incident response.
PoC: Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF: Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL: Living off the land: abuse of legitimate tools or system functions during an attack.

Microsoft Windows Server 2016: Improper Link Resolution Before File Access ('Link Following')

Published severity in operational context

Evidence used

Compensating controls

Verification

National CERT insights
?
CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

ENISA European Vulnerability Database

EUVD-2019-1341

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

What changed after publication