CVE-2019-0880: Microsoft Windows Privilege Escalation Vulnerability

Recommended actionPatch now

CISA confirms exploitation in the wild and lists 2022-06-13 as the remediation due date.

Patch available

What, why and how

A local elevation of privilege vulnerability exists in how splwow64.exe handles certain calls. An attacker who successfully exploited the vulnerability could elevate privileges on an affected system from low-integrity to medium-integrity.

What

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

What

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through local access may attempt exploitation with low privileges. 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.

Confirmed in the wild

CISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2022-05-23.

Public PoC / exploit material

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

None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path: local access → vulnerable operation → gain additional privileges
Attack surface: Local
Privileges required: Low: a basic authenticated account is required
User interaction: None
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.: CWE not yet assigned
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Common Vulnerability Scoring System 3.1: 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.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.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.

Privilege escalationCISA KEV

Official authority intelligence

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

ENISA EUVD · EUVD-2019-1629Known-exploited evidence recorded

A local elevation of privilege vulnerability exists in how splwow64.exe handles certain calls, aka 'Microsoft splwow64 Elevation of Privilege Vulnerability'.

Official EUVD record ↗

Canadian Centre for Cyber Security · English · AV19-142Microsoft security advisory – July 2019 monthly rollup

On 9 July 2019 Microsoft has released security updates to address almost 80 vulnerabilities affecting Windows and Office products. This rollup provides fixes for 15 critical vulnerabilities, including a vulnerability in the Windows Server DHCP service, identified as CVE-2019-0785, that can be exploited by using a specially crafted packet. Successful exploitation could lead to remote code execution on the affected system. Importantly, the DHCP server must be set to failover mode for the attack to succeed. Additionally, there have been active exploitations reported for the following two elevation of privilege vulnerabilities that are addressed in this rollup:

Official advisory ↗

CERT-FR · French · CERTFR-2019-AVI-320Multiples vulnérabilités dans Microsoft Windows

ment de la fonctionnalité de sécurité, une élévation de privilèges, une atteinte à la confidentialité des données, un déni de service et une exécution de code à distance. Solution Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation). Documentation Bulletin de sécurité Microsoft du 09 juillet 2019 https://portal.msrc.microsoft.com/fr-FR/security-guidance Référence CVE CVE-2019-0785 https://www.cve.org/CVERecord?id=CVE-2019-0785 Référence CVE CVE-2019-0811 https://www.cve.org/CVERecord?id=CVE-2019-0811 Référence CVE CVE-2019-0865 https://www.cve.org/CVERecord?id=CVE-2019-0865 Référence CVE CVE-2019-0880 https://www.cve.org/CVERecord?id=CVE-2019-0880 Référence CVE CVE-2019-0887 https://www.cve.org/CVERecord?id=CVE-2019-0887 Référence CVE CVE-2019-0966 https://www.cve.org/CVERecord?id=CVE-2019-0966 Référence CVE CVE-2019-0975 https://www.cve.org/CVERecord?id=CVE-2019-0975 Référence CVE CVE-2019-0999 https://www.cve.org/CVERecord?id=CVE-2019-0999 Référence CVE CVE-2019-1006 https://www.cve.org/CVERecord?id=CVE-2019-1006 Référence CVE CVE-2019-1037 https://www.cve.org/CVERecord?id=CVE-2019-1037 Référence CVE CVE-2019-1067 https://www.cve.org/CVERecord?id=CVE-2019-1067 Référence CVE CVE-2019-1071 https://www.cve.org/CVERecord?id=CVE-2019-1071 Ré

Official advisory ↗

JVN iPedia · Japanese · JVNDB-2019-006388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、splwow64.exe が特定の呼び出しを処理する方法に不備があるため、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「Microsoft splwow64 の特権の昇格の脆弱性」として公開しています。

Official advisory ↗

KISA KrCERT/CC · Korean · KNVD-5030MS 7월 보안 위협에 따른 정기 보안 업데이트 권고

- 권한상승 취약점(CVE-2018-15664,CVE-2019-0880,CVE-2019-0999,CVE-2019-1006,CVE-2019-1037,CVE-2019-1067,CVE-2019-1074,CVE-2019-1077,CVE-2019-1082,CVE-2019-1085,CVE-2019-1087,CVE-2019-1088,CVE-2019-1089,CVE-2019-1090,CVE-2019-1129,CVE-2019-1130)

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: 10 for 32-bit Systems, 10 Version 1703 for 32-bit Systems, 10 Version 1709 for x64-based Systems, 10 Version 1803 for 32-bit Systems, 10 for x64-based Systems, 10 Version 1703 for x64-based Systems, 10 Version 1607 for 32-bit Systems, 10 Version 1803 for x64-based Systems, 10 Version 1809 for x64-based Systems, 10 Version 1809 for 32-bit Systems, 10 Version 1803 for ARM64-based Systems, 10 Version 1809 for ARM64-based Systems, 8.1 for 32-bit systems, RT 8.1, 10 Version 1709 for 32-bit Systems, 10 Version 1607 for x64-based Systems, 10 Version 1709 for ARM64-based Systems, 8.1 for x64-based systems
Windows Server: 2012 R2 (Core installation), 2012 R2, 2019, 2019 (Core installation), 2012 (Core installation), 2012, 2016 (Core installation), 2016, version 1803 (Core Installation)
Windows Server, version 1903 (Server Core installation): unspecified
Windows 10 Version 1903 for x64-based Systems: unspecified
Windows 10 Version 1903 for 32-bit Systems: unspecified
Windows 10 Version 1903 for ARM64-based Systems: unspecified
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 15 Jul 2019 · Last source change 21 Oct 2025, 23:45 UTC · CWE not yet assigned

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-2019-1629

Product sourceCISA KEV

Remediation sourceCVE/CNA references

CWE sourceUnavailable

NVD statusNVD enriched

Missing structured fields: CWE classification. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗

1 Sep 2026, 02:45 UTC
ENISA known-exploited stateENISA EUVD now records this CVE in its known-exploited dataset.
Before
not listed in ENISA EUVD known-exploited dataset
After
listed in ENISA EUVD known-exploited dataset (EUVD-2019-1629)
ENISA EUVD ↗
1 Sep 2026, 02:42 UTC
ENISA EUVD mappingEUVD-2019-1629 was added to the official ENISA EUVD mapping for this CVE.
Before
not recorded
After
{"euvdId":"EUVD-2019-1629"}
ENISA EUVD ↗
21 Oct 2025, 23:45 UTC
Affected versionsThe structured affected or fixed version information changed.
Before
2012; 2012 (Core installation); 2012 R2; 2012 R2 (Core installation); 2016; 2016 (Core installation); version 1803 (Core Installation); 2019 · 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.
After
Windows Server: 2012, 2012 (Core installation), 2012 R2, 2012 R2 (Core installation), 2016, 2016 (Core installation), version 1803 (Core Installation), 2019, 2019 (Core installation); Windows: 8.1 for 32-bit systems, 8.1 for x64-based systems, RT 8.1, 10 for 32-bit Systems, 10 for x64-based Systems, 10 Version 1607 for 32-bit Systems, 10 Version 1607 for x64-based Systems, 10 Version 1703 for 32-bit Systems, 10 Version 1703 for x64-based Systems, 10 Version 1709 for 32-bit Systems, 10 Version 1709 for x64-based Systems, 10 Version 1803 for 32-bit Systems, 10 Version 1803 for x64-based Systems, 10 Version 1803 for ARM64-based Systems, 10 Version 1809 for 32-bit Systems, 10 Version 1809 for x64-based Systems, 10 Version 1809 for ARM64-based Systems, 10 Version 1709 for ARM64-based Systems; Windows 10 Version 1903 for 32-bit Systems: unspecified; Windows 10 Version 1903 for x64-based Systems: unspecified; Windows 10 Version 1903 for ARM64-based Systems: unspecified; Windows Server, version 1903 (Server Core installation): unspecified · 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 ↗
21 Oct 2025, 23:45 UTC
Vendor guidanceAuthoritative vendor guidance changed: added patch: portal.msrc.microsoft.com/CVE-2019-0880; added remediation: portal.msrc.microsoft.com/CVE-2019-0880.
Before
no authoritative guidance recorded
After
patch: portal.msrc.microsoft.com/CVE-2019-0880 · remediation: portal.msrc.microsoft.com/CVE-2019-0880
portal.msrc.microsoft.com ↗
21 Oct 2025, 23:45 UTC
Affected versionsThe structured affected or fixed version information changed.
Before
2012; 2012 (Core installation); 2012 R2; 2012 R2 (Core installation); 2016; 2016 (Core installation); version 1803 (Core Installation); 2019 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
After
2012; 2012 (Core installation); 2012 R2; 2012 R2 (Core installation); 2016; 2016 (Core installation); version 1803 (Core Installation); 2019 · 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 ↗
21 Oct 2025, 23:45 UTC
Remediation statusRemediation status changed from Awaiting fix to Patch available.
Before
Awaiting fix
After
Patch available
portal.msrc.microsoft.com ↗
21 Oct 2025, 23:45 UTC
CVSS scoreCVSS scoring authority changed from CISA ADP to NIST NVD; the displayed base score remained 7.8.
Before
7.8 (CVSS 3.1 · CISA ADP · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
After
7.8 (CVSS 3.1 · NIST NVD · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
NIST NVD ↗
21 Oct 2025, 23:45 UTC
Catalogue recordCVE added to the BlackTree catalogue.
CNA ↗

2019-07-15CVE published

2022-05-23Added to CISA KEV

2025-10-21Fixed release or patch reference recorded

ENISA EUVD · EUVD-2019-1629↗CISA KEV record↗CVE authority or vendor 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 Privilege Escalation Vulnerability

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-2019-1629

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

What changed after publication