CVE-2026-96185

Microsoft Exchange Online Remote Code Execution Vulnerability

Published Oct 22, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
Stack-based buffer overflow in Microsoft Exchange Online allows an authorized attacker to execute code over a network.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Description Stack-based buffer overflow in Microsoft Exchange Online allows an authorized attacker to execute code over a network.
Title Microsoft Exchange Online Remote Code Execution Vulnerability
First Time appeared Microsoft
Microsoft exchange Online
Weaknesses CWE-121
CPEs cpe:2.3:a:microsoft:exchange_online:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft exchange Online
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 10, 2026, 8:33 PM
Reserved
Sep 22, 2026, 6:48 PM
Status
Awaiting Analysis
Published
Oct 22, 2026, 10:19 PM
Modified
Oct 24, 2026, 4:18 AM