CVE-2026-65667
CRITICALCVSS 10/10EPSS 0.44%
Last modified
CVE-2026-65667 is a critical-severity vulnerability rated 10/10 on the CVSS scale. Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.. EPSS estimates a 0.44% chance of exploitation in the next 30 days.
Description
Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Teams | All versions |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-65667?
Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.
How severe is CVE-2026-65667?
CVE-2026-65667 has a CVSS score of 10/10 (CRITICAL severity). The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.
How do I fix CVE-2026-65667?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-65660Improper control of generation of code ('code injection') in…6.5
- CVE-2026-65661Heap-based buffer overflow in Microsoft Office allows an una…7.8
- CVE-2026-65662Out-of-bounds read in Windows GDI allows an authorized attac…5.5
- CVE-2026-65663Deserialization of untrusted data in Microsoft Office ShareP…8.8
- CVE-2026-65664Heap-based buffer overflow in Microsoft Office allows an una…7.8
- CVE-2026-65665Deserialization of untrusted data in Microsoft Office ShareP…8.8
- CVE-2026-65668Improper access control in Microsoft Purview eDiscovery allo…8.8
- CVE-2026-65671Heap-based buffer overflow in Windows Remote Access API allo…7.8
- CVE-2026-65672Heap-based buffer overflow in Windows Remote Access API allo…7.8
- CVE-2026-65673Improper neutralization of special elements used in an sql c…7.8
- CVE-2026-65675No cwe for this issue in Visual Studio Code CoPilot Chat Ext…7.1
- CVE-2026-65678Use after free in Windows Win32K allows an authorized attack…7
Are you affected by CVE-2026-65667?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST