Recorded 22 Oct 2026 at 22:02 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position. See the latest record.
Microsoft Exchange Online Remote Code Execution Vulnerability
Stack-based buffer overflow in Microsoft Exchange Online allows an authorized attacker to execute code over a network.
What it said
- CVE
- CVE-2026-96185
- Severity
- Critical
- CVSS base score
- 7.5
- CVSS 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
- Impact
- Remote Code Execution
- Exploitation detected
- Not reported by MSRC
- Publicly disclosed
- No
- Exploitability
- Not assessed
- Component
- Microsoft Exchange Online
- Weakness
- CWE-121: Stack-based Buffer Overflow
- Issued by
- Microsoft
- Customer action
- Not required (service-side fix)
- Affected products
- Microsoft Exchange Online
- Updates that fix it
- No KB listed
- CISA KEV
- Not listed in the collected catalog
- EPSS
- Not scored
- Public exploit code
- No Nuclei template listed
- Published
- 22 Oct 2026 07:00 UTC
- Last revised
- 22 Oct 2026 07:00 UTC
- Revision note
- Information published.
Recorded links
Source evidence when recorded
- Microsoft security releases
- Complete at observationRead 22 Oct 2026 at 22:02 UTC
- CISA KEV
- Complete at observationRead 22 Oct 2026 at 22:02 UTC
- FIRST EPSS
- Complete at observationRead 22 Oct 2026 at 22:02 UTC
- Public exploit code
- Complete at observationRead 22 Oct 2026 at 22:02 UTC
Coverage describes the sources at this observation. A complete read then does not establish their current position.
What changed
First observed 22 Oct 2026No field changes are shown for this selection.
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