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Full vulnerability report · 2019
CVE-2019-0881High confidence

An elevation of privilege vulnerability exists when the Windows Kernel improperly handles key enumeration, aka 'Windows Kernel Elevation of Privilege Vulnerability'

Microsoft · Windows

7.8HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:Medium, lowered one band.downgradedsince 4 Aug 2024

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 2.64% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Microsoft Windows and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Optional official sources

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

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2019-1630

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

An elevation of privilege vulnerability exists when the Windows Kernel improperly handles key enumeration, aka 'Windows Kernel Elevation of Privilege Vulnerability'.

What

An elevation of privilege vulnerability exists when the Windows Kernel improperly handles key enumeration, aka 'Windows Kernel Elevation of Privilege Vulnerability'.

Why

The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.

How

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

What

An elevation of privilege vulnerability exists when the Windows Kernel improperly handles key enumeration, aka 'Windows Kernel Elevation of Privilege Vulnerability'.

Why

The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.

How

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

02

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.
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 → Insufficiently Protected Credentials → 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: a standard category for the underlying weakness.
CWE-522 ↗

CWE-522: Insufficiently Protected Credentials. The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.

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 escalationCWE-522
A

Official authority intelligence

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

CERT-FR · French · CERTFR-2019-AVI-223Multiples vulnérabilités dans Microsoft Windows

crosoft.com/fr-FR/security-guidance Référence CVE CVE-2019-0707 https://www.cve.org/CVERecord?id=CVE-2019-0707 Référence CVE CVE-2019-0708 https://www.cve.org/CVERecord?id=CVE-2019-0708 Référence CVE CVE-2019-0725 https://www.cve.org/CVERecord?id=CVE-2019-0725 Référence CVE CVE-2019-0727 https://www.cve.org/CVERecord?id=CVE-2019-0727 Référence CVE CVE-2019-0733 https://www.cve.org/CVERecord?id=CVE-2019-0733 Référence CVE CVE-2019-0734 https://www.cve.org/CVERecord?id=CVE-2019-0734 Référence CVE CVE-2019-0758 https://www.cve.org/CVERecord?id=CVE-2019-0758 Référence CVE CVE-2019-0863 https://www.cve.org/CVERecord?id=CVE-2019-0863 Référence CVE CVE-2019-0881 https://www.cve.org/CVERecord?id=CVE-2019-0881 Référence CVE CVE-2019-0882 https://www.cve.org/CVERecord?id=CVE-2019-0882 Référence CVE CVE-2019-0885 https://www.cve.org/CVERecord?id=CVE-2019-0885 Référence CVE CVE-2019-0886 https://www.cve.org/CVERecord?id=CVE-2019-0886 Référence CVE CVE-2019-0889 https://www.cve.org/CVERecord?id=CVE-2019-0889 Référence CVE CVE-2019-0890 https://www.cve.org/CVERecord?id=CVE-2019-0890 Référence CVE CVE-2019-0891 https://www.cve.org/CVERecord?id=CVE-2019-0891 Référence CVE CVE-2019-0892 https://www.cve.org/CVERecord?id=CVE-2019-0892 Référence CVE CVE-2019-0893 https://www.cve.org/CVERecord?id=CVE-2019-0893 Ré

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2019-003592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 カーネルがキーの列挙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 カーネル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-5014MS 5월 보안 위협에 따른 정기 보안 업데이트 권고

- 권한상승 취약점(CVE-2019-0707,CVE-2019-0727,CVE-2019-0734,CVE-2019-0863,CVE-2019-0881,CVE-2019-0892,CVE-2019-0931,CVE-2019-0938,CVE-2019-0942)

Official advisory ↗
03

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
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.
04

Evidence and provenance

Published 16 May 2019 · Last source change 4 Aug 2024, 17:58 UTC · CWE-522 · Insufficiently Protected Credentials

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-2019-1630
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. ENISA EUVD mappingEUVD-2019-1630 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2019-1630"}
    ENISA EUVD ↗
  2. Vendor guidanceAuthoritative vendor guidance changed: added patch: portal.msrc.microsoft.com/CVE-2019-0881; added remediation: portal.msrc.microsoft.com/CVE-2019-0881.
    Before
    no authoritative guidance recorded
    After
    patch: portal.msrc.microsoft.com/CVE-2019-0881 · remediation: portal.msrc.microsoft.com/CVE-2019-0881
    portal.msrc.microsoft.com ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    7 for 32-bit Systems Service Pack 1; 7 for x64-based Systems Service Pack 1; 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 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    7 for 32-bit Systems Service Pack 1; 7 for x64-based Systems Service Pack 1; 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 · 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. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    portal.msrc.microsoft.com ↗
  5. SeveritySeverity changed from Unknown to High.
    Before
    Unknown
    After
    High
    NIST NVD ↗
  6. CVSS scoreCVSS score changed from not recorded to 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).
    Before
    not recorded
    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 ↗
  7. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2019-1630↗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.
Free version - for non-commercial use only.CVE-2019-0881 · cve.blacktree.nl