CVE-2026-62918 Microsoft Teams Spoofing Vulnerability
An attacker can spoof identities in Microsoft Teams by exploiting improper cryptographic signature verification, requiring a patch to mitigate.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-62918?
CVE-2026-62918 is a high-severity vulnerability in Microsoft Teams, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper verification of cryptographic signature in Microsoft Teams allows an unauthorized attacker to perform spoofing over a network.
Weakness: CWE-347
Which versions are affected by CVE-2026-62918?
It affects 1 product.
Products include Microsoft Teams.
How do I fix CVE-2026-62918?
No fix has been published for CVE-2026-62918 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-62918 being exploited?
There is no known exploitation of CVE-2026-62918 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Teams
- CVE-2026-65667 Microsoft Teams Elevation of Privilege Vulnerability
- CVE-2026-62896 Microsoft Teams Elevation of Privilege Vulnerability
- CVE-2026-33823 Microsoft Team Events Portal Information Disclosure Vulnerability
- CVE-2026-65767 Microsoft Teams for Android Spoofing Vulnerability
- CVE-2026-65768 Microsoft Teams Remote Code Execution Vulnerability
Sources
Also known as GHSA-p2wf-cwq4-f5gj.