CVE-2026-97755
Microsoft Office Excel Remote Code Execution Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Microsoft Office Excel Remote Code Execution Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-97755- CVSS 3.1
- 8.8 High
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 - Weakness
- CWE-125
- Updated
- 2026-11-02
EUVDEUVD-2026-99826
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
- Record
EUVD-2026-99826- CVSS 3.1
- 8.8 High
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-cf68-m57w-7crh
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over...
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
- Record
GHSA-cf68-m57w-7crh- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
NVD
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-97755- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
Affected products
- microsoft 365 apps
- microsoft 365 apps for enterprise
- microsoft office 365 for mac
- microsoft office ltsc 2021
- microsoft office ltsc 2024
- microsoft office ltsc for mac 2021
- microsoft office ltsc for mac 2024
- microsoft sharepoint server subscription edition
- microsoft 365
- microsoft office online server
- microsoft office 2021
- microsoft office 2024
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History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-97755 is a high vulnerability (CVSS 8.8) in Microsoft 365 Apps, published October 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.80%, the 56th percentile. No source names a fixed version.