CVE-2026-62918CWE-347

CVE-2026-62918

High · published August 7, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
41.6
In the wild
Unconfirmed
What it is

Improper verification of cryptographic signature in Microsoft Teams allows an unauthorized attacker to perform spoofing over a network.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00495 · 41.6th percentile
Weakness
CWE-347 · Improper Verification of Cryptographic Signature
Published
2026-08-07T04:16Z
Affected products (1)
ProductVersionsFixed in
microsoft/teamsall versions—
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62918 · [email protected]
EPSS history
Timeline
  • 06 AUG 22:37Z
    Microsoft Teams Spoofing Vulnerability
    cvelistv5