CVE-2026-33823
published 2026-05-07CVE-2026-33823: Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network.
PriorityP341medium6.5CVSS 3.1
AVNACLPRLUINSUCHINAN
EPSS
0.72%
49.7th percentile
Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | microsoft_teams | — | — |
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
VulDB
Microsoft Teams improper authorization (EUVD-2026-28450 / WID-SEC-2026-1413)
vuldb·2026-05-24·CVSS 6.5
CVE-2026-33823 [MEDIUM] Microsoft Teams improper authorization (EUVD-2026-28450 / WID-SEC-2026-1413)
A vulnerability, which was classified as critical, has been found in Microsoft Teams. This affects an unknown part. This manipulation causes improper authorization.
This vulnerability is tracked as CVE-2026-33823. The attack is possible to be carried out remotely. No exploit exists.
This product is provided as a managed service, meaning users do not have the ability to maintain vulnerability countermeasures themselves.
GHSA
GHSA-w6p3-2c62-jm2g: Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network
ghsa_unreviewed·2026-05-08
CVE-2026-33823 [CRITICAL] CWE-285 GHSA-w6p3-2c62-jm2g: Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network
Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network.
No detection rules found.
No public exploits indexed.
Hackernews
Microsoft Patches 138 Vulnerabilities, Including DNS and Netlogon RCE Flaws
blogs_hackernews·2026-05-13·CVSS 9.8
CVE-2025-54518 [CRITICAL] Microsoft Patches 138 Vulnerabilities, Including DNS and Netlogon RCE Flaws
Home
Threat Intelligence
Vulnerabilities
Cyber Attacks
Webinars
Expert Insights
Awards
Webinars
Awards
Free eBooks
About THN
Jobs
Advertise with us
## Microsoft Patches 138 Vulnerabilities, Including DNS and Netlogon RCE Flaws
Microsoft on Tuesday released patches for 138 security vulnerabilities spanning its product portfolio, although none of them have been listed as publicly known or under active attack.
Of the 138 flaws, 30 are rated Critical, 104 are rated Important, three are rated Moderate, and one is rated Low in severity. As many as 61 vulnerabilities are classified as privilege escalation bugs, followed by 32 remote code execution, 15 information disclosure, 14 spoofing, eight denial-of-service, six security feature bypass, and two tampering flaws.
The update li
Qualys
Microsoft and Adobe Patch Tuesday, May 2026 Security Update Review
blogs_qualys·2026-05-12
CVE-2026-40364 Microsoft and Adobe Patch Tuesday, May 2026 Security Update Review
## Table of Contents
Microsoft Patch Tuesday forMay2026
Adobe Patches for May 2026
Critical Severity Vulnerabilities Patched inMayPatch Tuesday Edition
Other Microsoft Vulnerability Highlights
Microsoft Release Summary
Qualys Monthly Webinar Series
May 2026’s Patch Tuesday arrives with Microsoft addressing a fresh set of vulnerabilities across its ecosystem, reinforcing the ongoing need for timely patching in an increasingly threat-heavy landscape. Here’s a quick breakdown of what you need to know.
## Microsoft Patch Tuesday for May 2026
This month’s release addresses 137 vulnerabilities, including 30 critical and 103 important-severity vulnerabilities.
In this month’s updates, Microsoft has not addressed any publicly disclosed zero-day vulnerability.
Microsoft has addressed 128
Sans Isc
Microsoft May 2026 Patch Tuesday, (Tue, May 12th)
blogs_sans_isc·2026-05-12·CVSS 4.3
CVE-2026-41103 [MEDIUM] Microsoft May 2026 Patch Tuesday, (Tue, May 12th)
Microsoft May 2026 Patch Tuesday
Published: 2026-05-12. Last Updated: 2026-05-12 18:29:36 UTC
by Johannes Ullrich (Version: 1)
0 comment(s)
Today's Microsoft patch Tuesday fixes 137 different vulnerabilities. In addition, the update addresses 137 Chromium-related issues affecting Microsoft Edge.
There are no already disclosed or already exploited vulnerabilities included in today's patches. I removed the Chromium issues from the table below and included only the 137 Microsoft issues to make it more readable.
Note that issues related to Microsoft Azure are labeled as "no customer action required.
Significant Vulnerabilities of interest:
CVE-2026-41103: This vulnerability affects the Microsoft SSO Plugin for Jira & Confluence. Exploitation could lead to an elevation of privileges. Wit
Crowdstrike
May 2026 Patch Tuesday: 30 Critical Vulnerabilities Among 130 CVEs
blogs_crowdstrike
CVE-2026-20929 May 2026 Patch Tuesday: 30 Critical Vulnerabilities Among 130 CVEs
Falcon AIDR Detects Threats at the Prompt Layer in Kubernetes AI Applications May 13, 2026
May 2026 Patch Tuesday: 30 Critical Vulnerabilities Among 130 CVEs May 12, 2026
Inside CrowdStrike Automated Leads: A Transformative Approach to Threat Detections May 11, 2026
CrowdStrike Named a Leader in the First-Ever Gartner® Magic Quadrant™ for Cyberthreat Intelligence Technologies May 06, 2026
Falcon AIDR Detects Threats at the Prompt Layer in Kubernetes AI Applications May 13, 2026
May 2026 Patch Tuesday: 30 Critical Vulnerabilities Among 130 CVEs May 12, 2026
Inside CrowdStrike Automated Leads: A Transformative Approach to Threat Detections May 11, 2026
CrowdStrike Named a Leader in the First-Ever Gartner® Magic Quadrant™ for Cyberthreat Intelligence Technologies May 06, 2026
Video Hi
2026-05-07
Published