CVE-2026-65667CWE-862broken-access-control

CVE-2026-65667

Critical · published August 7, 2026

CVSS v3.1
10.0
EPSS
1%
Percentile
56.1
In the wild
Unconfirmed
What it is

Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00798 · 56.1th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-08-07T04:16Z
Affected products (1)
ProductVersionsFixed in
microsoft/teamsall versions—
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65667 · [email protected]
EPSS history
Timeline
  • 06 AUG 22:37Z
    Microsoft Teams Elevation of Privilege Vulnerability
    cvelistv5