Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-33823— Microsoft Team Events Portal Information Disclosure Vulnerability

Quick assessment

Affected
Microsoft Microsoft Teams
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Teams是美国微软（Microsoft）公司的一款用于在线会议、聊天、云存储功能的软件。 Microsoft Teams存在授权问题漏洞，该漏洞源于授权不当，可能导致授权攻击者通过网络披露信息。

CVSS 9.6 · Critical EPSS 0.86% · P57

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
Microsoft Microsoft Teams - affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-33823

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Microsoft Team Events Portal Information Disclosure Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Teams 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Teams是美国微软（Microsoft）公司的一款用于在线会议、聊天、云存储功能的软件。 Microsoft Teams存在授权问题漏洞，该漏洞源于授权不当，可能导致授权攻击者通过网络披露信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Shenlong Deep Dive — AI Deep Analysis

10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.

Read summary Full analysis (login)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Microsoft Teams - -

II. Public POCs for CVE-2026-33823

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-33823

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-33823 (1)

Same Patch Batch · Microsoft · 2026-05-07 · 12 CVEs total

CVE-2026-42826 10.0 CRITICAL Azure DevOps Information Disclosure Vulnerability
CVE-2026-33109 9.9 CRITICAL Azure Managed Instance for Apache Cassandra Remote Code Execution Vulnerability
CVE-2026-35428 9.6 CRITICAL Azure Cloud Shell Spoofing Vulnerability
CVE-2026-33844 9.0 CRITICAL Azure Managed Instance for Apache Cassandra Remote Code Execution Vulnerability
CVE-2026-32207 8.8 HIGH Azure Machine Learning Notebook Spoofing Vulnerability
CVE-2026-35435 8.6 HIGH Azure AI Foundry Elevation of Privilege Vulnerability
CVE-2026-34327 8.2 HIGH Microsoft Partner Center Spoofing Vulnerability
CVE-2026-41105 8.1 HIGH Azure Monitor Action Group Notification System Elevation of Privilege Vulnerability
CVE-2026-26164 7.5 HIGH M365 Copilot Information Disclosure Vulnerability
CVE-2026-26129 7.5 HIGH M365 Copilot Information Disclosure Vulnerability
CVE-2026-33111 7.5 HIGH Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability

IV. Related Vulnerabilities

Same product: Microsoft Teams
Same vendor: Microsoft
Same weakness: CWE-285

V. Comments for CVE-2026-33823

No comments yet

Leave a comment