Recorded 14 Oct 2026 at 11:22 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 Office Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
What it said
- CVE
- CVE-2026-97765
- Severity
- Critical
- CVSS base score
- 8.8
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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
- Exploitation Less Likely
- Component
- Microsoft Office Excel
- Weakness
- CWE-122: Heap-based Buffer Overflow
- Issued by
- Microsoft
- Customer action
- Required: apply the update
- Affected products
- Microsoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems, Microsoft Office 365 for Mac, Microsoft Office LTSC 2021 for 32-bit editions, Microsoft Office LTSC 2021 for 64-bit editions, Microsoft Office LTSC 2024 for 32-bit editions, Microsoft Office LTSC 2024 for 64-bit editions, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Office Online Server
- Updates that fix it
- KB5002928: Office Online Server
- CISA KEV
- Not listed in the collected catalog
- EPSS
- Not scored
- Public exploit code
- No Nuclei template listed
- Published
- 13 Oct 2026 07:00 UTC
- Last revised
- 13 Oct 2026 07:00 UTC
- Revision note
- Information published.
Recorded links
Source evidence when recorded
- Microsoft security releases
- Complete at observationRead 14 Oct 2026 at 11:21 UTC
- CISA KEV
- Complete at observationRead 14 Oct 2026 at 11:21 UTC
- FIRST EPSS
- Complete at observationRead 14 Oct 2026 at 11:21 UTC
- Public exploit code
- Complete at observationRead 14 Oct 2026 at 11:21 UTC
Coverage describes the sources at this observation. A complete read then does not establish their current position.
What changed
First observed 14 Oct 2026No field changes in the recorded history.
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