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Full vulnerability report · 2019
CVE-2019-0888High confidence

ActiveX Data Objects (ADO) Remote Code Execution Vulnerability

Microsoft · Windows 10 Version 1703

8.8HighCVSS 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:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 11.13% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Microsoft Windows 10 Version 1703 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: Within 30 daysRemediation target: Within 180 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-2019-1637

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

A remote code execution vulnerability exists in the way that ActiveX Data Objects (ADO) handle objects in memory. An attacker who successfully exploited the vulnerability could execute arbitrary code with the victim user’s privileges. An attacker could craft a website that exploits the vulnerability and then convince a victim user to visit the website. The security update addresses the vulnerability by modifying how ActiveX Data Objects handle objects in memory.

What

A remote code execution vulnerability exists in the way that ActiveX Data Objects (ADO) handle objects in memory. An attacker who successfully exploited the vulnerability could execute arbitrary code with the victim user’s privileges. An attacker could craft a website that exploits the vulnerability and then convince a victim user to visit the website. The security update addresses the vulnerability by modifying how ActiveX Data Objects handle objects in memory.

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 a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may execute code or commands in the affected security context.

What

A remote code execution vulnerability exists in the way that ActiveX Data Objects (ADO) handle objects in memory. An attacker who successfully exploited the vulnerability could execute arbitrary code with the victim user’s privileges. An attacker could craft a website that exploits the vulnerability and then convince a victim user to visit the website. The security update addresses the vulnerability by modifying how ActiveX Data Objects handle objects in memory.

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 a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may execute code or commands in the affected security context.

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
a network path → vulnerable operation → execute code or commands in the affected security context
Attack surface
Network
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.
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:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.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
After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
NetworkUnauthenticatedRemote code execution
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-264Multiples vulnérabilités dans Microsoft Windows

iteur pour l'obtention des correctifs (cf. section Documentation). Documentation Bulletin de sécurité Microsoft du 11 juin 2019 https://portal.msrc.microsoft.com/fr-FR/security-guidance Référence CVE CVE-2019-0620 https://www.cve.org/CVERecord?id=CVE-2019-0620 Référence CVE CVE-2019-0709 https://www.cve.org/CVERecord?id=CVE-2019-0709 Référence CVE CVE-2019-0710 https://www.cve.org/CVERecord?id=CVE-2019-0710 Référence CVE CVE-2019-0711 https://www.cve.org/CVERecord?id=CVE-2019-0711 Référence CVE CVE-2019-0713 https://www.cve.org/CVERecord?id=CVE-2019-0713 Référence CVE CVE-2019-0722 https://www.cve.org/CVERecord?id=CVE-2019-0722 Référence CVE CVE-2019-0888 https://www.cve.org/CVERecord?id=CVE-2019-0888 Référence CVE CVE-2019-0904 https://www.cve.org/CVERecord?id=CVE-2019-0904 Référence CVE CVE-2019-0905 https://www.cve.org/CVERecord?id=CVE-2019-0905 Référence CVE CVE-2019-0906 https://www.cve.org/CVERecord?id=CVE-2019-0906 Référence CVE CVE-2019-0907 https://www.cve.org/CVERecord?id=CVE-2019-0907 Référence CVE CVE-2019-0908 https://www.cve.org/CVERecord?id=CVE-2019-0908 Référence CVE CVE-2019-0909 https://www.cve.org/CVERecord?id=CVE-2019-0909 Référence CVE CVE-2019-0941 https://www.cve.org/CVERecord?id=CVE-2019-0941 Référence CVE CVE-2019-0943 https://www.cve.org/CVERecord?id=CVE-2019-0943 Ré

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2019-005024複数の Microsoft Windows 製品におけるリモートでコードを実行される脆弱性

複数の Microsoft Windows 製品には、ActiveX Data Objects (ADO) がメモリ内のオブジェクトを処理する方法に不備があるため、リモートでコードを実行される脆弱性が存在します。 ベンダは、本脆弱性を「ActiveX Data Objects (ADO) Remote Code Execution Vulnerability」として公開しています。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-5016MS 6월 보안 위협에 따른 정기 보안 업데이트 권고

- 원격코드실행 취약점(CVE-2019-0620,CVE-2019-0709,CVE-2019-0888,CVE-2019-0904,CVE-2019-0905,CVE-2019-0906,CVE-2019-0907,CVE-2019-0908,CVE-2019-0909,CVE-2019-0974,CVE-2019-0989,CVE-2019-0991,CVE-2019-0992,CVE-2019-0993,CVE-2019-1002,CVE-2019-1003,CVE-2019-1024,CVE-2019-1038,CVE-2019-1043,CVE-2019-1051,CVE-2019-1052)

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. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 12 Jun 2019 · Last source change 20 May 2025, 17:49 UTC · CWE not yet assigned

CVE recordCVE.org · 5.1
CVSS sourceCNA
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-2019-1637
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceUnavailable
NVD statusNVD modified after enrichment

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. ENISA EUVD mappingEUVD-2019-1637 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2019-1637"}
    ENISA EUVD ↗
  2. Vendor guidanceAuthoritative vendor guidance changed: added patch: portal.msrc.microsoft.com/CVE-2019-0888; added remediation: portal.msrc.microsoft.com/CVE-2019-0888; removed vendor advisory: msrc.microsoft.com/CVE-2019-0888.
    Before
    vendor advisory: msrc.microsoft.com/CVE-2019-0888
    After
    patch: portal.msrc.microsoft.com/CVE-2019-0888 · remediation: portal.msrc.microsoft.com/CVE-2019-0888
    portal.msrc.microsoft.com ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    10.0.0 < publication; 10.0.17763.0 < publication · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    10.0.0 < publication; 10.0.17763.0 < publication · 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. 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-2019-1637↗Patch or update reference↗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-2019-0888 · cve.blacktree.nl