Spoofing Vulnerability in Microsoft Teams by Microsoft
CVE-2026-62918

7.5HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Teams
Vendor
CVE Published:
6 August 2026

What is CVE-2026-62918?

A vulnerability in Microsoft Teams allows an unauthorized attacker to exploit improper verification of cryptographic signatures, potentially enabling network spoofing. This may result in a breach of confidentiality and integrity as attackers gain the ability to impersonate legitimate users, jeopardizing the security of communications within the platform.

Affected Version(s)

Microsoft Teams -

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.