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Full vulnerability report · 2018
CVE-2018-8392High confidence

Microsoft Windows 7: security vulnerability

Microsoft · Windows 7

7.8HighCVSS 3.0
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 22.76% 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 7 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-2018-20030

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 buffer overflow vulnerability exists in the Microsoft JET Database Engine that could allow remote code execution on an affected system, aka "Microsoft JET Database Engine Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8393.

What

A buffer overflow vulnerability exists in the Microsoft JET Database Engine that could allow remote code execution on an affected system, aka "Microsoft JET Database Engine Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8393.

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

What

A buffer overflow vulnerability exists in the Microsoft JET Database Engine that could allow remote code execution on an affected system, aka "Microsoft JET Database Engine Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8393.

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 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
local access → vulnerable operation → execute code or commands in the affected security context
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.
CWE not yet assigned
CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.0/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
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.
UnauthenticatedRemote 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-2018-AVI-436Multiples vulnérabilités dans Microsoft Windows

pour l'obtention des correctifs (cf. section Documentation). Documentation Bulletin de sécurité Microsoft du 11 septembre 2018 https://portal.msrc.microsoft.com/fr-FR/security-guidance Référence CVE CVE-2018-0965 https://www.cve.org/CVERecord?id=CVE-2018-0965 Référence CVE CVE-2018-8271 https://www.cve.org/CVERecord?id=CVE-2018-8271 Référence CVE CVE-2018-8332 https://www.cve.org/CVERecord?id=CVE-2018-8332 Référence CVE CVE-2018-8335 https://www.cve.org/CVERecord?id=CVE-2018-8335 Référence CVE CVE-2018-8336 https://www.cve.org/CVERecord?id=CVE-2018-8336 Référence CVE CVE-2018-8337 https://www.cve.org/CVERecord?id=CVE-2018-8337 Référence CVE CVE-2018-8392 https://www.cve.org/CVERecord?id=CVE-2018-8392 Référence CVE CVE-2018-8393 https://www.cve.org/CVERecord?id=CVE-2018-8393 Référence CVE CVE-2018-8410 https://www.cve.org/CVERecord?id=CVE-2018-8410 Référence CVE CVE-2018-8419 https://www.cve.org/CVERecord?id=CVE-2018-8419 Référence CVE CVE-2018-8420 https://www.cve.org/CVERecord?id=CVE-2018-8420 Référence CVE CVE-2018-8422 https://www.cve.org/CVERecord?id=CVE-2018-8422 Référence CVE CVE-2018-8424 https://www.cve.org/CVERecord?id=CVE-2018-8424 Référence CVE CVE-2018-8433 https://www.cve.org/CVERecord?id=CVE-2018-8433 Référence CVE CVE-2018-8434 https://www.cve.org/CVERecord?id=CVE-2018-8434 Ré

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2018-009597複数の Microsoft Windows 製品の Microsoft JET データベースエンジンにおけるバッファオーバーフローの脆弱性

複数の Microsoft Windows 製品の Microsoft JET データベースエンジンには、バッファオーバーフローの脆弱性が存在します。 ベンダは、本脆弱性を「Microsoft JET データベース エンジンのリモートでコードが実行される脆弱性」として公開しています。 本脆弱性は、CVE-2018-8392 とは異なる脆弱性です。

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2018-009596複数の Microsoft Windows 製品の Microsoft JET データベースエンジンにおけるバッファオーバーフローの脆弱性

複数の Microsoft Windows 製品の Microsoft JET データベースエンジンには、バッファオーバーフローの脆弱性が存在します。 ベンダは、本脆弱性を「Microsoft JET データベース エンジンのリモートでコードが実行される脆弱性」として公開しています。 本脆弱性は、CVE-2018-8393 とは異なる脆弱性です。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-4921MS 9월 보안 위협에 따른 정기 보안 업데이트 권고

- 원격코드실행 취약점(CVE-2018-0965,CVE-2018-8332,CVE-2018-8354,CVE-2018-8367,CVE-2018-8392,CVE-2018-8393,CVE-2018-8420,CVE-2018-8439,CVE-2018-8456,CVE-2018-8457,CVE-2018-8459,CVE-2018-8464,CVE-2018-8465,CVE-2018-8466,CVE-2018-8467,CVE-2018-8468,CVE-2018-8475)

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 13 Sept 2018 · Last source change 5 Aug 2024, 06:54 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-2018-20030
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-2018-20030 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2018-20030"}
    ENISA EUVD ↗
  2. Vendor guidanceAuthoritative vendor guidance changed: added patch: portal.msrc.microsoft.com/CVE-2018-8392; added remediation: portal.msrc.microsoft.com/CVE-2018-8392.
    Before
    no authoritative guidance recorded
    After
    patch: portal.msrc.microsoft.com/CVE-2018-8392 · remediation: portal.msrc.microsoft.com/CVE-2018-8392
    portal.msrc.microsoft.com ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    32-bit Systems Service Pack 1; x64-based Systems Service Pack 1; (Server Core installation); Windows RT 8.1; 32-bit Systems Service Pack 2; 32-bit Systems Service Pack 2 (Server Core installation); Itanium-Based Systems Service Pack 2; x64-based Systems Service Pack 2 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    32-bit Systems Service Pack 1; x64-based Systems Service Pack 1; (Server Core installation); Windows RT 8.1; 32-bit Systems Service Pack 2; 32-bit Systems Service Pack 2 (Server Core installation); Itanium-Based Systems Service Pack 2; x64-based Systems Service Pack 2 · 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 3.0 · 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 ↗
  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-2018-20030↗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-2018-8392 · cve.blacktree.nl