Microsoft Office Remote Code Execution Vulnerability
Published Aug 11, 2026
7.8
HIGHCVSS 3.1
EPSS 0.46%
Description
Improper neutralization of special elements used in a command ('command injection') in Microsoft Office allows an unauthorized attacker to execute code locally.
Affected products
-
- Version 16.0.1StatusaffectedConstraints<https://aka.ms/OfficeSecurityReleases
- Version
-
- Version 19.0.0StatusaffectedConstraints<https://aka.ms/OfficeSecurityReleases
- Version
-
- Version 16.0.1StatusaffectedConstraints<https://aka.ms/OfficeSecurityReleases
- Version
-
- Version 16.0.0StatusaffectedConstraints<https://aka.ms/OfficeSecurityReleases
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise | n/a |
| ||||||
| Microsoft | Microsoft Office 2019 | n/a |
| ||||||
| Microsoft | Microsoft Office LTSC 2021 | n/a |
| ||||||
| Microsoft | Microsoft Office LTSC 2024 | n/a |
|
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
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
1 other source (NVD) ▾
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Aug 12, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
Aug–Oct 2026- EPSS v5
Percentile over time
- EPSS v5
Table of values (2 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.46% (0.00462) | 37.81th | v5 (v2026.06.15) |
| Aug 12, 2026 | 0.36% (0.00364) | 29.32th | v5 (v2026.06.15) |
References (1)
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65656 vendor-advisorypatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65656 | vendor-advisorypatchVendor Advisory |
Change history (0)
No recorded changes yet.