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Full vulnerability report · 2026
CVE-2026-69819High confidence

RPC Runtime Library Remote Code Execution Vulnerability

Microsoft · Windows 10 Version 1607

9.8CriticalCVSS 3.1
Recommended action
Within 72 hours

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded.

Patch available
Optional official sources

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

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

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-2026-73053

No EUVD known-exploited evidence

Out-of-bounds write in RPC Runtime allows an unauthorized attacker to execute code over a network.

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
9.8 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 72 hours

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded.

Patch available
01

What, why and how

Out-of-bounds write in RPC Runtime allows an unauthorized attacker to execute code over a network.

What

Out-of-bounds write in RPC Runtime allows an unauthorized attacker to execute code over a network.

Why

A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.

How

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

What

Out-of-bounds write in RPC Runtime allows an unauthorized attacker to execute code over a network.

Why

A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.

How

An attacker operating through a network path may attempt exploitation without authentication or 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 → Out-of-bounds Write → execute code or commands in the affected security context
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
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-787 ↗

CWE-787: Out-of-bounds Write. The product writes data past the end, or before the beginning, of the intended buffer.

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:N/S:U/C:H/I:H/A:H/E:U/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.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
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 executionCWE-787
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-73053Official EUVD mapping

Out-of-bounds write in RPC Runtime allows an unauthorized attacker to execute code over a network.

Official EUVD record ↗
BSI · German · WID-SEC-2026-3243Microsoft Windows: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in verschiedenen Versionen von Microsoft Windows Server, Microsoft Windows 10 und Microsoft Windows 11 ausnutzen, um seine Privilegien zu erhöhen, um einen Denial of Service herbeizuführen, um Informationen offenzulegen und um beliebigen Code auszuführen.

Official advisory ↗
INCIBE-CERT · Spanish · boletin-de-seguridad-de-microsoft-septiembre-de-2026Boletín de seguridad de Microsoft: septiembre de 2026

uting and Remote Access Service (RRAS) CVE-2026-69595: vulnerabilidad de Ejecución Remota de Código en Windows Services for NFS ONCRPC XDR Driver CVE-2026-69641: vulnerabilidad de Elevación de Privilegios en Microsoft Exchange Server CVE-2026-69669: vulnerabilidad de Ejecución Remota de Código en Windows Kernel CVE-2026-69715: vulnerabilidad de Ejecución Remota de Código en Windows Direct Show CVE-2026-69730: vulnerabilidad de Ejecución Remota de Código en Windows DNS Server CVE-2026-69768: vulnerabilidad de Ejecución Remota de Código en Windows RNDIS CVE-2026-69769: vulnerabilidad de Ejecución Remota de Código en Windows HTTP Print Provider CVE-2026-69819: vulnerabilidad de Ejecución Remota de Código en RPC Runtime Library CVE-2026-69824: vulnerabilidad de Ejecución Remota de Código en Microsoft Standard XPS CVE-2026-69829: vulnerabilidad de Ejecución Remota de Código en Windows Shell CVE-2026-69845: vulnerabilidad de Ejecución Remota de Código en Windows DHCP Server CVE-2026-69854: vulnerabilidad de Elevación de Privilegios en Spring Cloud Azure CVE-2026-69910: vulnerabilidad de Ejecución Remota de Código en Windows Hyper-V CVE-2026-70296: vulnerabilidad de Ejecución Remota de Código en Windows Imaging Component CVE-2026-70352: vulnerabilidad de Elevación de Privilegios en Azure AI Language

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1147Multiples vulnérabilités dans Microsoft Windows

embre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-69807 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-69808 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-69809 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-69813 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-69814 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-69816 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-69817 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-69818 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-69819 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-69820 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-69821 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-69822 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-69824 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-69826 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-69827 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-69829 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-69832 du 08 septembre 2026 Bulletin de sécurité Microso

Official advisory ↗
CSIRT Italia · Italian · aggiornamenti-mensili-microsoft-24Aggiornamenti Mensili Microsoft

nuova finestra - - CVE-2026-69740 : apre una nuova finestra - - CVE-2026-69620 : apre una nuova finestra - - CVE-2026-69741 : apre una nuova finestra - - CVE-2026-69862 : apre una nuova finestra - - CVE-2026-69625 : apre una nuova finestra - - CVE-2026-69626 : apre una nuova finestra - - CVE-2026-69623 : apre una nuova finestra - - CVE-2026-69744 : apre una nuova finestra - - CVE-2026-69624 : apre una nuova finestra - - CVE-2026-69866 : apre una nuova finestra - - CVE-2026-69816 : apre una nuova finestra - - CVE-2026-69817 : apre una nuova finestra - - CVE-2026-69814 : apre una nuova finestra - - CVE-2026-69818 : apre una nuova finestra - - CVE-2026-69819 : apre una nuova finestra - - CVE-2026-69813 : apre una nuova finestra - - CVE-2026-69805 : apre una nuova finestra - - CVE-2026-69806 : apre una nuova finestra - - CVE-2026-69803 : apre una nuova finestra - - CVE-2026-69804 : apre una nuova finestra - - CVE-2026-69809 : apre una nuova finestra - - CVE-2026-69807 : apre una nuova finestra - - CVE-2026-69808 : apre una nuova finestra - - CVE-2026-69801 : apre una nuova finestra - - CVE-2026-69717 : apre una nuova finestra - - CVE-2026-69838 : apre una nuova finestra - - CVE-2026-69839 : apre una nuova finestra - - CVE-2026-69715 : apre una nuova finestra - - CVE-2026-69716 : apre una nuova fi

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6946MS 9월 보안 위협에 따른 정기 보안 업데이트 권고

권한 상승 취약성 | | Windows PowerShell | CVE-2026-69807 | PowerShell 권한 상승 취약성 | | Windows Win32K | CVE-2026-69808 | Win32k 정보 유출 취약성 | | Active Directory Domain Services | CVE-2026-69809 | Windows Active Directory Domain Services 서비스 거부 취약성 | | Windows DNS | CVE-2026-69813 | Windows DNS Server Remote Code Execution Vulnerability | | Windows Credential Providers | CVE-2026-69814 | Windows 자격 증명 공급자 권한 상승 취약성 | | Windows Accounts Control | CVE-2026-69816 | Windows 계정 제어판 권한 상승 취약성 | | Windows Bluetooth Port Driver | CVE-2026-69817 | Windows Bluetooth 포트 드라이버 권한 상승 취약성 | | Windows Win32K | CVE-2026-69818 | Windows Win32k 권한 상승 취약성 | | RPC Runtime | CVE-2026-69819 | RPC 런타임 라이브러리 원격 코드 실행 취약성 | | Windows Hello | CVE-2026-69820 | Windows Hello 권한 상승 취약성 | | Active Directory Certificate Services (AD CS) | CVE-2026-69821 | Active Directory Certificate Services (AD CS) 권한 상승 취약성 | | Windows Kerberos | CVE-2026-69822 | Windows Kerberos 권한 상승 취약성 | | Microsoft Standard XPS | CVE-2026-69824 | Microsoft 표준 XPS 원격 코드 실행 취약성 | | Windows Biometric Service | CVE-2026-69826 | Windows 생체 인식 서비스 권한 상승 취약성 | | Role: DNS Server | CVE-2026-69827 | Windows DNS 서버 원격 코드 실행 취약성 | | Windows Shell | CVE-2026-69829 | Windows Shell 원격 코드 실행 취약성 | | Windows Win32K | CVE-2026-69832 | Win32k 정보 유출 취약성 | | Windows ALPC | CVE-2026

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0353Kwetsbaarheden verholpen in Microsoft Windows

Een kwaadwillende kan de kwetsbaarheden misbruiken om aanvallen uit te voeren die kunnen leiden tot de categorieën schade, zoals genoemd in onderstaande tabel. Microsoft heeft voor Windows 666 kwetsbaarheden verholpen. De 32 ernstigste kwetsbaarheden bevinden zich in meerdere Windows componenten en hebben een CVSS score van 9.0 en hoger toegewezen gekregen. Kwaadwillenden met toegang tot deze componenten kunnen zonder voorafgaande authenticatie mogelijk code uitvoeren of zich toegang verschaffen tot het kwetsbare systeem. Deze kwetsbaarheden zijn in onderstaande tabel weergegeven. De overige 634 kwetsbaarheden variëren in ernst van middelmatig tot hoog en kritiek. Raapleeg het MSRC-portaal voor aanvullende informatie. ==**UPDATE**== De kwetsbaarheid met kenmerk CVE-2026-81963 heeft een CVSS-score van 7,8. Het betreft een privilege-escalatiekwetsbaarheid in de Windows Update Stack. Een geauthenticeerde kwaadwillende kan deze kwetsbaarheid lokaal misbruiken om zijn rechten te verhogen en SYSTEM-rechten te verkrijgen. Microsoft meldt dat de kwetsbaarheid actief wordt misbruikt. Er zijn geen details bekend over de wijze waarop de kwetsbaarheid bij aanvallen wordt misbruikt. De kwetsbaarheid met kenmerk CVE-2026-85880 heeft een CVSS-score van 7,8. Het betreft een privilege-escalatiekwetsbaarheid in Windows Advanced Local Procedure Call (ALPC). Een geauthenticeerde kwaadwillende kan deze kwetsbaarheid lokaal misbruiken om zijn rechten te verhogen en SYSTEM-rechten te verkrijgen. Microsoft meldt dat de kwetsbaarheid actief wordt misbruikt. Er zijn geen details bekend over de wijze waarop de kwetsbaarheid bij aanvallen wordt misbruikt. ==**EINDE UPDATE**== ``` |----------------|------|---------------------------|-------------------------------------| | CVE-ID | CVSS | Component | Impact | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-73025 | 9,80 | iSCSI | Omzeilen van beveiligingsmaatregel | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69276 | 9,80 | UxTheme Library | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-70296 | 9,80 | Imaging | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69730 | 9,80 | DNS | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| |CVE-2026-69824 | 9,80 | XPS | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| |CVE-2026-69590 | 9,80 | RRAS | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69463 | 9,80 | NTFS | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69669 | 9,80 | NTFS | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69845 | 9,80 | DHCP Server | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-72979 | 9,80 | DHCP Server | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69595 | 9,80 | NFS ONCRPC | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-78445 | 9,80 | NFS ONCRPC | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69829 | 9,80 | SHELL | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-72983 | 9,80 | ICS | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69579 | 9,80 | Message Queuing | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69496 | 9,80 | Compressed Folder | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69774 | 9,00 | Hyper-V | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69910 | 9,80 | Hyper-V | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-72982 | 9,80 | Netlogon | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69769 | 9,80 | HTTP Print Provider | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69431 | 9,80 | Telnet Client | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69639 | 9,80 | Libarchive | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69819 | 9,80 | RPC Runtime | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69493 | 9,80 | Event Logging Service | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69434 | 9,80 | URL Moniker | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69715 | 9,80 | Direct Show | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-73009 | 9,80 | SSTP | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-68839 | 9,80 | USB Mass Storage Class | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-68839 | 9,80 | Remote Desktop Services | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69525 | 9,80 | USB Mass Storage Class | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-73010 | 9,80 | Failover Cluster | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-69768 | 9,80 | RNDIS | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| | CVE-2026-77493 | 9,80 | Office Outlook | Uitvoeren van willekeurige code | |----------------|------|---------------------------|-------------------------------------| ```

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 8 Sept 2026 · Last source change 11 Sept 2026, 22:10 UTC · CWE-787 · Out-of-bounds Write

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-09-09
European sourceENISA EUVD · EUVD-2026-73053
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceOther authority
NVD statusNVD awaiting enrichment

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

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    10.0.14393.0 < 10.0.14393.9512; 10.0.17763.0 < 10.0.17763.9245; 10.0.19044.0 < 10.0.19044.7725; 10.0.19045.0 < 10.0.19045.7725; 10.0.22631.0 < 10.0.22631.7582; 10.0.26100.0 < 10.0.26100.9445; 10.0.26200.0 < 10.0.26200.9445 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    Windows 10 Version 1607: 10.0.14393.0 < 10.0.14393.9512; Windows 10 Version 1809: 10.0.17763.0 < 10.0.17763.9245; Windows 10 Version 21H2: 10.0.19044.0 < 10.0.19044.7725; Windows 10 Version 22H2: 10.0.19045.0 < 10.0.19045.7725; Windows 11 version 23H2: 10.0.22631.0 < 10.0.22631.7582; Windows 11 Version 23H2: 10.0.22631.0 < 10.0.22631.7582; Windows 11 Version 24H2: 10.0.26100.0 < 10.0.26100.9445; Windows 11 Version 25H2: 10.0.26200.0 < 10.0.26200.9445; Windows 11 version 26H1: 10.0.28000.0 < 10.0.28000.2954; Windows Server 2012: 6.2.9200.0 < 6.2.9200.26349; Windows Server 2012 (Server Core installation): 6.2.9200.0 < 6.2.9200.26349; Windows Server 2012 R2: 6.3.9600.0 < 6.3.9600.23397; Windows Server 2012 R2 (Server Core installation): 6.3.9600.0 < 6.3.9600.23397; Windows Server 2016: 10.0.14393.0 < 10.0.14393.9512; Windows Server 2016 (Server Core installation): 10.0.14393.0 < 10.0.14393.9512; Windows Server 2019: 10.0.17763.0 < 10.0.17763.9245; Windows Server 2019 (Server Core installation): 10.0.17763.0 < 10.0.17763.9245; Windows Server 2022: 10.0.20348.0 < 10.0.20348.5622; Windows Server 2025: 10.0.26100.0 < 10.0.26100.33438; Windows Server 2025 (Server Core installation): 10.0.26100.0 < 10.0.26100.33438 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    CNA ↗
  2. ENISA EUVD mappingEUVD-2026-73053 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2026-73053"}
    ENISA EUVD ↗
  3. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2026-73053↗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-2026-69819 · cve.blacktree.nl