HIGH
Microsoft Excel Remote Code Execution Vulnerability
Published Jul 14, 2026
7.8
HIGHCVSS 3.1
EPSS 0.47%
Description
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Affected products
-
- Version 16.0.1StatusaffectedConstraints<https://aka.ms/OfficeSecurityReleases
- Version
-
- Version 16.0.0.0StatusaffectedConstraints<16.0.5561.1001
- Version
-
- Version 19.0.0StatusaffectedConstraints<https://aka.ms/OfficeSecurityReleases
- Version
-
- Version 1.0.0StatusaffectedConstraints<16.111.26071215
- Version
-
- Version 16.0.1StatusaffectedConstraints<https://aka.ms/OfficeSecurityReleases
- Version
-
- Version 16.0.0StatusaffectedConstraints<https://aka.ms/OfficeSecurityReleases
- Version
-
- Version 16.0.1StatusaffectedConstraints<16.111.26071215
- Version
-
- Version 16.0.0StatusaffectedConstraints<16.111.26071215
- Version
-
- Version 16.0.0.0StatusaffectedConstraints<16.0.10417.20175
- 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 Excel 2016 | n/a |
| ||||||
| Microsoft | Microsoft Office 2019 | n/a |
| ||||||
| Microsoft | Microsoft Office 365 for Mac | n/a |
| ||||||
| Microsoft | Microsoft Office LTSC 2021 | n/a |
| ||||||
| Microsoft | Microsoft Office LTSC 2024 | n/a |
| ||||||
| Microsoft | Microsoft Office LTSC for Mac 2021 | n/a |
| ||||||
| Microsoft | Microsoft Office LTSC for Mac 2024 | n/a |
| ||||||
| Microsoft | Office Online Server | n/a |
|
OR
- n/a
- n/a
- 2016
- 2016
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- < 16.0.10417.20175
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Weaknesses (1)
References (1)
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55136 vendor-advisorypatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55136 | vendor-advisorypatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Jul 14, 2026
Updated Sep 25, 2026
Reserved Jun 16, 2026
Link CVE-2026-55136
CISA Vulnrichment
Updated Jul 14, 2026