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Full vulnerability report · 2026
CVE-2026-59115High confidence

Microsoft Entra Provisioning Service Elevation of Privilege Vulnerability

Microsoft · Microsoft Entra Provisioning Service

9.9CriticalCVSS 3.1
Recommended action
Within 7 days

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

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-2026-54317

No EUVD known-exploited evidence

'.../...//' in Microsoft Entra Provisioning Service (SyncFabric) allows an authorized attacker to elevate privileges 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
9.9 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

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

Patch available
01

What, why and how

'.../...//' in Microsoft Entra Provisioning Service (SyncFabric) allows an authorized attacker to elevate privileges over a network.

What

'.../...//' in Microsoft Entra Provisioning Service (SyncFabric) allows an authorized attacker to elevate privileges over a network.

Why

The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '.../...//' (doubled triple dot slash) sequences that can resolve to a location that is outside of that directory.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

What

'.../...//' in Microsoft Entra Provisioning Service (SyncFabric) allows an authorized attacker to elevate privileges over a network.

Why

The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '.../...//' (doubled triple dot slash) sequences that can resolve to a location that is outside of that directory.

How

An attacker operating through a network path 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
a network path → Path Traversal: '.../...//' → gain additional privileges
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Changed: exploitation can affect a different security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-35 ↗

CWE-35: Path Traversal: '.../...//'. The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '.../...//' (doubled triple dot slash) sequences that can resolve to a location that is outside of that directory.

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:L/UI:N/S:C/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.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SChangedScope: The attack can affect a component governed by a different security 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
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkPrivilege escalationCWE-35
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-54317Official EUVD mapping

'.../...//' in Microsoft Entra Provisioning Service (SyncFabric) allows an authorized attacker to elevate privileges over a network.

Official EUVD record ↗
BSI · German · WID-SEC-2026-2689Microsoft Azure: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Microsoft Azure und Microsoft Entra ausnutzen, um beliebigen Code auszuführen oder erweiterte Berechtigungen zu erlangen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260812Security Bulletin 12 Aug 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 12 Aug 2026, published on 12 August 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

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

erabilidad de ejecución remota de código en Windows DNS Server CVE-2026-62819: Vulnerabilidad de ejecución remota de código en Windows Routing and Remote Access Service (RRAS) CVE-2026-62818: Vulnerabilidad de ejecución remota de código en Windows Active Directory Certificate Services (AD CS) CVE-2026-62817: Vulnerabilidad de ejecución remota de código en Windows DNS Server CVE-2026-62816: Vulnerabilidad de ejecución remota de código en Windows Reliable Multicast Transport Driver (RMCAST) CVE-2026-62815: Vulnerabilidad de ejecución remota de código en Microsoft QUIC CVE-2026-59118: Vulnerabilidad de Elevación de Privilegios en Copilot Cowork CVE-2026-59115: Vulnerabilidad de Elevación de Privilegios en Microsoft Entra Provisioning Service CVE-2026-56162: Vulnerabilidad de Elevación de Privilegios en Azure SQL Database CVE-2026-56161: Vulnerabilidad de Revelación de Información en Azure Logic Apps CVE-2026-50516: Vulnerabilidad de Elevación de Privilegios en Microsoft Azure Kubernetes Service CVE-2026-50515: Vulnerabilidad de ejecución remota de código en Azure Service Bus CVE-2026-50481: Vulnerabilidad de Elevación de Privilegios en Azure Active Directory CVE-2026-49163: Vulnerabilidad de Elevación de Privilegios en Application Insights Profiler Los códigos CVE asignados a las vulnerabilidades

Official advisory ↗
CSIRT Italia · Italian · aggiornamenti-mensili-microsoft-23Aggiornamenti Mensili Microsoft

nuova finestra - - CVE-2026-59135 : apre una nuova finestra - - CVE-2026-59134 : apre una nuova finestra - - CVE-2026-59133 : apre una nuova finestra - - CVE-2026-59132 : apre una nuova finestra - - CVE-2026-59131 : apre una nuova finestra - - CVE-2026-59130 : apre una nuova finestra - - CVE-2026-59128 : apre una nuova finestra - - CVE-2026-59127 : apre una nuova finestra - - CVE-2026-59126 : apre una nuova finestra - - CVE-2026-59125 : apre una nuova finestra - - CVE-2026-59124 : apre una nuova finestra - - CVE-2026-59122 : apre una nuova finestra - - CVE-2026-59119 : apre una nuova finestra - - CVE-2026-59118 : apre una nuova finestra - - CVE-2026-59115 : apre una nuova finestra - - CVE-2026-59113 : apre una nuova finestra - - CVE-2026-58651 : apre una nuova finestra - - CVE-2026-58650 : apre una nuova finestra - - CVE-2026-58641 : apre una nuova finestra - - CVE-2026-58639 : apre una nuova finestra - - CVE-2026-58612 : apre una nuova finestra - - CVE-2026-57105 : apre una nuova finestra - - CVE-2026-57104 : apre una nuova finestra - - CVE-2026-56179 : apre una nuova finestra - - CVE-2026-56174 : apre una nuova finestra - - CVE-2026-56162 : apre una nuova finestra - - CVE-2026-56161 : apre una nuova finestra - - CVE-2026-54984 : apre una nuova finestra - - CVE-2026-54981 : apre una nuova fi

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-027667マイクロソフトのMicrosoft Entra Provisioning Serviceにおけるパストラバーサルの脆弱性

Microsoft Entra Provisioning Service（SyncFabric）における「.../...//」の脆弱性は、認証された攻撃者がネットワーク上で権限を昇格させることを可能にします。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6916MS 8월 보안 위협에 따른 정기 보안 업데이트 권고

취약성 | | Azure Storage Explorer | CVE-2026-57104 | Azure Storage Explorer 권한 상승 취약성 | | Microsoft Office SharePoint | CVE-2026-57105 | Microsoft Office SharePoint 스푸핑 취약성 | | Microsoft PowerShell Core | CVE-2026-58612 | PowerShell 정보 공개 취약성 | | Microsoft Office SharePoint | CVE-2026-58639 | Microsoft SharePoint Server 스푸핑 취약성 | | .NET | CVE-2026-58641 | .NET 권한 상승 취약성 | | Visual Studio Code | CVE-2026-58650 | Visual Studio Code 보안 기능 바이패스 취약성 | | Microsoft Office Word | CVE-2026-58651 | Microsoft Word 원격 코드 실행 취약성 | | Visual Studio Code | CVE-2026-59113 | Visual Studio Code 원격 코드 실행 취약성 | | Microsoft Entra Provisioning Service (SyncFabric) | CVE-2026-59115 | Microsoft Entra 프로비전 서비스 권한 상승 취약성 | | Copilot Cowork | CVE-2026-59118 | Copilot Cowork 권한 상승 취약성 | | Microsoft PowerShell | CVE-2026-59119 | PowerShell 권한 상승 취약성 | | Windows Telephony Service | CVE-2026-59122 | Windows 전화 통신 서비스 권한 상승 취약성 | | Microsoft High Performance Computing (HPC) Pack | CVE-2026-59124 | Microsoft 고성능 컴퓨팅(HPC) 팩 원격 코드 실행 취약성 | | Virtual Hard Disk (VHD) Miniport Driver | CVE-2026-59125 | 가상 하드 디스크(VHD) 미니포트 드라이버 권한 상승 취약성 | | Windows Event Logging Service | CVE-2026-59126 | Windows 이벤트 로그 서비스 권한 상승 취약성 | | Windows Installer | CVE-2026-59127 | Windows Installer 권한 상승 취약성 | | Windows Encrypting File System (EFS) | CVE-20

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0287Kwetsbaarheden verholpen in Microsoft Azure

Een kwaadwillende kan de kwetsbaarheden misbruiken om aanvallen uit te voeren die kunnen leiden tot de categorieën schade zoals benoemd in onderstaande tabel. De kwetsbaarheid met kenmerk **CVE-2026-56162**, met een CVSS score van 10.0 en de kwetsbaarheden met kenmerk **CVE-2026-50516, CVE-2026-56161, CVE-2026-59115, CVE-2026-62830, CVE-2026-62873** en **CVE-2026-68823**, elk met een CVSS score hoger dan 9, zijn reeds centraal verholpen door Microsoft zelf en slechts opgenomen ter informatie. Hiervoor zijn geen acties vereist. De kwetsbaarheid met kenmerk **CVE-2026-50481**, met een CVSS score van 9.9 echter, vereist **wel** actie. Deze kwetsbaarheid bevindt zich in de Azure Active Directory en stelt een kwaadwillende in staat om zich verhoogde rechten toe te kennen en daarmee toegang te krijgen tot gegevens en componenten waartoe de kwaadwillende aanvankelijk niet is geautoriseerd. ``` Azure Monitor Agent: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-47299 | 7.20 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Microsoft Purview eDiscovery: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-65668 | 8.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Microsoft Azure Kubernetes Service: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-50516 | 9.40 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Azure Entra ID: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-62869 | 8.80 | Voordoen als andere gebruiker | |----------------|------|-------------------------------------| Microsoft Entra Connect Sync: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-65673 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Azure SQL Database: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-63522 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-56162 | 10.0 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Azure Logic Apps: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-56161 | 9.60 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| Azure Active Directory: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-50481 | 9.90 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Application Insights Profiler: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-49163 | 8.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Azure SRE Agent: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-62830 | 9.90 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Microsoft Entra Provisioning Service (SyncFabric): |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-59115 | 9.90 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Azure CycleCloud: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-70340 | 8.10 | Verkrijgen van verhoogde rechten | | CVE-2026-65806 | 6.50 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| Azure Confidential Ledger: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-68823 | 9.10 | Uitvoeren van willekeurige code | |----------------|------|-------------------------------------| Microsoft 365 Admin Center: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-62873 | 9.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Azure Storage Explorer: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-57104 | 8.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| ```

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
Microsoft Entra Provisioning Service: -
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 6 Aug 2026 · Last source change 29 Aug 2026, 16:20 UTC · CWE-35 · Path Traversal: '.../...//'

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 2026-08-14
European sourceENISA EUVD · EUVD-2026-54317
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceOther authority
NVD statusNVD enriched

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
    - · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    Microsoft Entra Provisioning Service: - · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2026-54317↗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-2026-59115 · cve.blacktree.nl