Description
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
Analysis
No analysis available yet.
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 | affected |
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| Microsoft | Microsoft Office 2016 | affected |
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| Microsoft | Microsoft Office 2019 | affected |
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| Microsoft | Microsoft Office 365 for Mac | affected |
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| Microsoft | Microsoft Office LTSC 2021 | affected |
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| Microsoft | Microsoft Office LTSC 2024 | affected |
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| Microsoft | Microsoft Office LTSC for Mac 2021 | affected |
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| Microsoft | Microsoft Office LTSC for Mac 2024 | affected |
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No data.
No data.
No data available yet.
Remediation
No remediation available yet.
Tracking
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Advisories
No advisories yet.
References
History
Tue, 14 Jul 2026 17:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally. | |
| Title | Microsoft Office Remote Code Execution Vulnerability | |
| First Time appeared |
Microsoft
Microsoft 365 Apps Microsoft office 2016 Microsoft office 2019 Microsoft office 2021 Microsoft office 2024 Microsoft office 365 Microsoft office Macos 2021 Microsoft office Macos 2024 |
|
| Weaknesses | CWE-122 | |
| CPEs | cpe:2.3:a:microsoft:365_apps:*:*:*:*:enterprise:*:*:* cpe:2.3:a:microsoft:office_2016:*:*:*:*:*:*:x86:* cpe:2.3:a:microsoft:office_2019:*:*:*:*:*:*:*:* cpe:2.3:a:microsoft:office_2021:*:*:*:*:long_term_servicing_channel:*:*:* cpe:2.3:a:microsoft:office_2024:*:*:*:*:long_term_servicing_channel:*:*:* cpe:2.3:a:microsoft:office_365:*:*:*:*:*:macos:*:* cpe:2.3:a:microsoft:office_macos_2021:*:*:*:*:*:long_term_servicing_channel:*:* cpe:2.3:a:microsoft:office_macos_2024:*:*:*:*:*:long_term_servicing_channel:*:* |
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| Vendors & Products |
Microsoft
Microsoft 365 Apps Microsoft office 2016 Microsoft office 2019 Microsoft office 2021 Microsoft office 2024 Microsoft office 365 Microsoft office Macos 2021 Microsoft office Macos 2024 |
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| References |
| |
| Metrics |
cvssV3_1
|
MITRE
Status: PUBLISHED
Assigner: microsoft
Published:
Updated: 2026-07-14T19:40:54.351Z
Reserved: 2026-06-16T14:13:49.836Z
Link: CVE-2026-55049
Vulnrichment
No data.
NVD
No data.
Redhat
No data.
OpenCVE Enrichment
No data.
Weaknesses
-
CWE-122
Heap-based Buffer Overflow