VDB-386851 · CVE-2026-59115 · EUVD-2026-54317

Microsoft Entra Provisioning Service improper authorization

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.1	$0-$5k	1.60

Summaryinfo

A vulnerability has been found in Microsoft Entra Provisioning Service and classified as problematic. This vulnerability affects unknown code. This manipulation causes improper authorization. This vulnerability is handled as CVE-2026-59115. The attack can be initiated remotely. There is not any exploit available. This product is a managed service, indicating that users are not permitted to maintain vulnerability countermeasures themselves.

Detailsinfo

A vulnerability has been found in Microsoft Entra Provisioning Service (the affected version unknown) and classified as problematic. Affected by this vulnerability is an unknown part. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect integrity. The summary by CVE is:

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

It is possible to read the advisory at msrc.microsoft.com. This vulnerability is known as CVE-2026-59115 since 07/02/2026. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/07/2026). The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

This product is available as a managed service. Users are not able to maintain vulnerability countermeasures themselves.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-54317). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Microsoft

Name

Entra Provisioning Service

License

commercial

Managed Service

Website

Vendor: https://www.microsoft.com/

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authorization
CWE: CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/02/2026 CVE reserved
08/07/2026 +36 days Advisory disclosed
08/07/2026 +0 days VulDB entry created
08/07/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: microsoft.com

Advisory: msrc.microsoft.com
Status: Confirmed

CVE: CVE-2026-59115 (🔒)
GCVE (CVE): GCVE-0-2026-59115
GCVE (VulDB): GCVE-100-386851
EUVD: 🔒

Entryinfo

Created: 08/07/2026 02:30
Updated: 08/07/2026 04:26
Changes: 08/07/2026 02:30 (51), 08/07/2026 04:26 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.