CVE-2025-54906
Microsoft Office Remote Code Execution Vulnerability
Free of memory not on the heap in Microsoft Office allows an unauthorized attacker to execute code locally.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- 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 Remote Code Execution Vulnerability
Free of memory not on the heap in Microsoft Office allows an unauthorized attacker to execute code locally.
- Record
CVE-2025-54906- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-416
- Updated
- 2026-11-02
EUVDEUVD-2025-27351
Free of memory not on the heap in Microsoft Office allows an unauthorized attacker to execute code locally.
- Record
EUVD-2025-27351- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/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-5x6f-vhcg-x3vx
Free of memory not on the heap in Microsoft Office allows an unauthorized attacker to execute...
Free of memory not on the heap in Microsoft Office allows an unauthorized attacker to execute code locally.
- Record
GHSA-5x6f-vhcg-x3vx- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
NVD
Free of memory not on the heap in Microsoft Office allows an unauthorized attacker to execute code locally.
- Record
CVE-2025-54906- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
Affected products
- microsoft office
- microsoft 365 apps
- microsoft 365 apps for enterprise
- microsoft office 2016
- microsoft office 2019
- microsoft office ltsc 2021
- microsoft office ltsc 2024
- microsoft office ltsc for mac 2021
- microsoft office ltsc for mac 2024
- microsoft sharepoint enterprise server 2016
- microsoft sharepoint server 2019
- microsoft office long term servicing channel
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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-2025-54906 is a high vulnerability (CVSS 7.8) in Microsoft Office, published September 9, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.83%, the 58th percentile. No source names a fixed version.