Exploitation observed; activity peaked at 5 mentions and remains active
Recommended action window: Immediate (within 24h)
NVD description
Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network.
Priority
MEDIUM
Exploitation
ACTIVE
PoC
NONE
Patch
AVAILABLE
Momentum
STABLE
If you run products in this scope, you should treat this CVE as relevant to your environment.
1 version affected across 1 product
| Date | Total | Labels |
|---|
| 2026-05-08 | 3 | General1Patch2 |
| 2026-05-09 | 1 | Patch1 |
| 2026-05-10 | 3 | Disclosure1General1Patch1 |
| 2026-05-12 | 3 | General2Patch1 |
| 2026-05-13 | 1 | General1 |
| 2026-05-18 | 1 | Disclosure1 |
| 2026-06-10 | 5 | Disclosure5 |
| 2026-06-11 | 1 | Active Exploitation1 |
Unpopular opinion: The cybersecurity industry is selling you dashboards. CVE: CVE-2026-33823 CVSS: 9.6 (3.1) — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N Severity: CRITICAL Status: Critical advisory
Post summary
The post merely enumerates a critical CVE with its CVSS score and severity but supplies no exploit, PoC, patch, or active‑usage information.
🚨 Critical - Microsoft Teams information disclosure (CVE-2026-33823) Improper authorization allows an authenticated attacker to access sensitive information over the network. 👉 No action required - fully mitigated by Microsoft
Post summary
Microsoft Teams encountered a critical information disclosure vulnerability (CVE-2026-33823), but Microsoft has fully mitigated it, so no action is required.
That confession cascaded. Microsoft Teams CVE-2026-33823 (CVSS 9.6) went from disclosure to active exploitation in under 24 hours. PAN-OS CVE-2026-0300 (CVSS 9.3) was under state-sponsored attack before patches existed. Ivanti EPMM CVE-2026-6973 weaponized in ransomware…
Post summary
The tweet asserts that Microsoft Teams CVE‑2026‑33823, PAN‑OS CVE‑2026‑0300, and Ivanti EPMM CVE‑2026‑6973 were all actively exploited soon after disclosure, with state‑sponsored attacks and ransomware weaponization.
On May 7, 2026, Microsoft assigned CVE-2026-33823 to an improper authorization vulnerability in the Teams Events Portal, a web-based interface used by enterprises to schedule, manage, and monitor live events, webinars, and large-scale meetings. The vulnerability permits…
Post summary
Microsoft has announced CVE‑2026‑33823, an improper authorization flaw affecting the Teams Events Portal, marking a new vulnerability disclosure.
The Collaboration Tool Paradox: Why CVE-2026-33823 in Teams Events Portal Matters to Every CISO Microsoft Teams Events Portal suffers from CVE-2026-33823, a CVSS 9.6 information disclosure vulnerability allowing authenticated attackers to access sensitive meeting…
Post summary
The post announces the new CVE‑2026‑33823 with its severity and impact, but offers no proof‑of‑concept, exploit code, or evidence of active use, and does not mention a fix or mitigation.
Microsoft Teams Events Portal suffers from CVE-2026-33823, a CVSS 9.6 information disclosure vulnerability allowing authenticated attackers to access sensitive meeting metadata, attendee lists, and confidential presentation materials. Published May 7, 2026, this flaw…
Post summary
The post announces the discovery of a high‑severity information disclosure flaw (CVE‑2026‑33823) in Microsoft Teams Events Portal, specifying its impact on authenticated users.
The Collaboration Tool Paradox: CVE-2026-33823 Shows Why Teams Events Portal Is a Data Exfiltration Vector. Microsoft Teams Events Portal suffers from CVE-2026-33823, a CVSS 9.6 information disclosure vulnerability allowing authenticated attackers to access sensitive…
Post summary
The post announces a high‑severity information disclosure vulnerability (CVE‑2026‑33823) in Microsoft Teams Events Portal without providing PoC, exploit code, or patch details.
#windowsupdate #microsoft つづき ・CVE-2026-33109 9.9 Azure Managed Instance for Apache Cassandra ・CVE-2026-33821 7.7 Microsoft Dynamics 365 Customer Insights ・CVE-2026-33823 9.6 Microsoft Teams ・CVE-2026-33844 9 Azure Managed Instance for Apache Cassandra つづく…
Post summary
The tweet simply lists several upcoming CVE identifiers, their severity scores, and affected Microsoft products, without providing deeper technical or operational information.
🚨 CVE-2026-33823 — CVSS 9.6/10 ██████████ Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network. Severity: CRITICAL Patch now. #cybersecurity #CVE https://t.co/PdGbSQnTp1
Post summary
Microsoft Teams CVE-2026-33823 is a critical improper‑authorization flaw that allows information disclosure; a patch has been issued.
https://lyrie.ai/research/research/2026-05-09-cve-2026-33823-teams-events-data-leak #lyrie #cybersecurity #CVE #threatintel #zerodayattack
Post summary
The tweet references a research link about CVE‑2026‑33823, a Teams events data leak, but offers no explicit proof of concept, exploit details, active exploitation evidence, or mitigation information.
CVE-2026-33823: Microsoft Teams Events Portal Information Disclosure Bug - What It Means for Your Business and How to Respond https://hubs.li/Q04gYw5B0
Post summary
The article introduces CVE‑2026‑33823, an information‑disclosure vulnerability in Microsoft Teams Events Portal, and advises organizations on how to address the issue.
CVE-2026-33823: Critical Microsoft Teams Data Leak Fixed https://thecybrdef.com/cve-2026-33823-microsoft-teams-data-leak-vulnerability/ #Microsoftteams #Cyberupdates #Cybersecurity
Post summary
Article announces that Microsoft Teams CVE-2026-33823, a critical data leak vulnerability, has been fixed, confirming the vendor has released a patch but no exploit details are disclosed.
https://lyrie.ai/research/research/cve-2026-33823-advisory #lyrie #cybersecurity #CVE #threatintel #zerodayattack
Post summary
The provided text contains a link to an advisory for CVE-2026-33823 but does not disclose any specific details, PoC, exploits, or mitigation information.
🚨*CVE* CVE-2026-33823 Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network. https://www.cve.org/CVERecord?id=CVE-2026-33823 ----- Traducción: CVE-2026-33823 Autorización inapropiada en Microsoft Teams permite a un ata… http://infoflow.cloud`
Post summary
CVE-2026-33823 is a newly disclosed Microsoft Teams vulnerability that permits improper authorization and may allow an authorized attacker to disclose information over a network. No PoC, exploit tool, active exploitation evidence, or patch details are mentioned.
CVE-2026-33823 Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network. https://www.cve.org/CVERecord?id=CVE-2026-33823
Post summary
The text announces CVE‑2026‑33823 as an improper authorization in Microsoft Teams, but offers no actionable details or evidence of exploitation.
CVE-2026-33823: Critical Microsoft Teams Data Leak Fixed https://thecybrdef.com/cve-2026-33823-microsoft-teams-data-leak-vulnerability/ #Microsoftteams #Cyberupdates #Cybersecurity
Post summary
The article announces that Microsoft Teams has been patched to fix a critical data leak vulnerability (CVE-2026-33823).
CVE-2026-33823: Critical Microsoft Teams Data Leak Fixed https://thecybrdef.com/cve-2026-33823-microsoft-teams-data-leak-vulnerability/ #Microsoftteams #Cyberupdates #Cybersecurity https://t.co/Wm8iD25PMZ
Post summary
The tweet announces that CVE-2026-33823, a critical data leak in Microsoft Teams, has been fixed. It references an external article for more information but provides no technical or exploit details.
CVE-2026-33823 Information Disclosure in Microsoft Teams via Improper Authorizat... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-33823 Vulnerability Alert Subscriptions: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=1
Post summary
The text announces CVE‑2026‑33823 as an information disclosure issue in Microsoft Teams, but lacks detail on proofs of concept, exploitation, mitigation, or active use.
1 of 1 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | microsoft | teams | - | - | - |