CVE-2026-62896: CWE-287: Improper Authentication in Microsoft Microsoft Teams
Improper authentication in Microsoft Teams allows an authorized attacker to elevate privileges over a network.
AI Analysis
Technical Summary
This vulnerability in Microsoft Teams is due to improper authentication mechanisms that permit an attacker with some level of authorization to escalate their privileges remotely over a network. The CVSS 3.1 score of 9.6 indicates a critical severity with network attack vector, low attack complexity, and no user interaction required. The vulnerability affects confidentiality and integrity with a scope change, but does not affect availability. No specific affected versions or patch details are available in the provided data.
Potential Impact
An authorized attacker can elevate privileges over the network, potentially gaining higher access rights than intended. This can lead to significant confidentiality and integrity breaches within the affected Microsoft Teams environment. Availability is not impacted. No known exploits are currently reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or workaround information is provided, organizations should monitor official Microsoft advisories for updates and apply any released fixes promptly.
CVE-2026-62896: CWE-287: Improper Authentication in Microsoft Microsoft Teams
Description
Improper authentication in Microsoft Teams allows an authorized attacker to elevate privileges over a network.
CVSS v3.1
Score 9.6critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Microsoft Teams is due to improper authentication mechanisms that permit an attacker with some level of authorization to escalate their privileges remotely over a network. The CVSS 3.1 score of 9.6 indicates a critical severity with network attack vector, low attack complexity, and no user interaction required. The vulnerability affects confidentiality and integrity with a scope change, but does not affect availability. No specific affected versions or patch details are available in the provided data.
Potential Impact
An authorized attacker can elevate privileges over the network, potentially gaining higher access rights than intended. This can lead to significant confidentiality and integrity breaches within the affected Microsoft Teams environment. Availability is not impacted. No known exploits are currently reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or workaround information is provided, organizations should monitor official Microsoft advisories for updates and apply any released fixes promptly.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-x274-p4gq-2363
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-62896"]
- Ecosystems
- []
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
- Remediation Level
- official-fix
Threat ID: 6a75739abf8831d539d91a4f
Added to database: 08/07/2026, 05:56:42 UTC
Last enriched: 08/07/2026, 07:41:17 UTC
Last updated: 08/08/2026, 03:40:59 UTC
Views: 4
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