CVE-2026-33823: CWE-285: Improper Authorization in Microsoft Microsoft Teams
Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network.
AI Analysis
Technical Summary
This vulnerability, identified as CVE-2026-33823 and classified under CWE-285 (Improper Authorization), affects Microsoft Teams. It allows an attacker with some level of authorization to improperly access or disclose information over a network. The CVSS v3.1 score of 9.6 reflects that the attack vector is network-based, requires low attack complexity, and privileges with no user interaction. The impact includes high confidentiality and integrity loss without availability impact. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized attacker can exploit this vulnerability to disclose sensitive information over the network, compromising confidentiality and integrity of data within Microsoft Teams. There is no impact on availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the vendor-provided patch as soon as possible to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33823 for detailed update instructions.
CVE-2026-33823: CWE-285: Improper Authorization in Microsoft Microsoft Teams
Description
Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network.
CVSS v3.1
Score 9.6critical
Affected software
Microsoft
Microsoft Teams
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CVE-2026-33823 and classified under CWE-285 (Improper Authorization), affects Microsoft Teams. It allows an attacker with some level of authorization to improperly access or disclose information over a network. The CVSS v3.1 score of 9.6 reflects that the attack vector is network-based, requires low attack complexity, and privileges with no user interaction. The impact includes high confidentiality and integrity loss without availability impact. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized attacker can exploit this vulnerability to disclose sensitive information over the network, compromising confidentiality and integrity of data within Microsoft Teams. There is no impact on availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the vendor-provided patch as soon as possible to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33823 for detailed update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-24T00:52:01.351Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33823","vendor":"Microsoft"}]
Threat ID: 69fd029bcbff5d8610389b81
Added to database: 05/07/2026, 21:22:35 UTC
Last enriched: 08/11/2026, 16:33:39 UTC
Last updated: 09/14/2026, 22:01:33 UTC
Views: 234
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