CVE-2026-87695

Inclusion of functionality from untrusted control sphere in Microsoft Exchange Server allows an…

Risk score: 60/100
CVSS: 7.8 v3.1
Exploit chance (30 days): 0.2%
Published: 13 Oct 2026

Open in the live forecast Today's forecast

What to know

What it is: Inclusion of functionality from untrusted control sphere in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
Affected: See advisory
Fix: Apply the vendor's security update; see the linked advisory.
Exploitation: No known exploitation

Why it is Yellow

CVSS 7.8 high
On your watchlist: exchange server

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-87695

Original description

Inclusion of functionality from untrusted control sphere in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.

Last activity 13 Oct 2026. Patch Forecast updates every hour.