Microsoft Azure Bot Service access control

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.
8.3$5k-$25k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Microsoft Azure Bot Service. This issue affects some unknown processing. The manipulation results in access control. This vulnerability is reported as CVE-2025-55244. The attack can be launched remotely. No exploit exists. This product is a managed service, so users do not have direct control over vulnerability countermeasures.

Detailsinfo

A vulnerability classified as critical has been found in Microsoft Azure Bot Service (affected version unknown). Affected is an unknown functionality. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is available at msrc.microsoft.com. This vulnerability is traded as CVE-2025-55244 since 08/11/2025. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 09/10/2025). This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability is also documented in the databases at EUVD (EUVD-2025-26872) and CERT Bund (WID-SEC-2025-1971). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Microsoft Entra
  • Microsoft Azure

Productinfo

Type

Vendor

Name

License

Managed Service

  • yes

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.3

VulDB Base Score: 8.1
VulDB Temp Score: 7.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.0
CNA Vector (microsoft): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/11/2025 CVE reserved
09/05/2025 +25 days Advisory disclosed
09/05/2025 +0 days VulDB entry created
09/10/2025 +5 days VulDB entry last update

Sourcesinfo

Vendor: microsoft.com

Advisory: msrc.microsoft.com
Status: Confirmed

CVE: CVE-2025-55244 (🔒)
GCVE (CVE): GCVE-0-2025-55244
GCVE (VulDB): GCVE-100-322722
EUVD: 🔒
CERT Bund: WID-SEC-2025-1971 - Microsoft Azure: Mehrere Schwachstellen ermöglichen Privilegieneskalation

Entryinfo

Created: 09/05/2025 07:44
Updated: 09/10/2025 13:58
Changes: 09/05/2025 07:44 (61), 09/05/2025 22:41 (7), 09/10/2025 13:58 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

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