CVE-2026-45645
HIGH EPSS 29.0%
Published Jun 9, 20262w ago · Modified Jun 19, 20261w ago
7.8 CVSS 3.1
Published Jun 9, 2026 2w ago
Last Modified Jun 19, 2026 1w ago
Description
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
29.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 2
CWE-787 Out-of-bounds Write Memory Safety
CWE-822
Affected Products 13
| Vendor | Product | Version | Range |
|---|---|---|---|
| microsoft | 365_apps | * | any |
| microsoft | 365_apps | * | any |
| microsoft | microsoft_365 | * | any |
| microsoft | office_2016 | * | any |
| microsoft | office_2016 | * | any |
| microsoft | office_2019 | * | any |
| microsoft | office_2019 | * | any |
| microsoft | office_2021 | * | any |
| microsoft | office_2021 | * | any |
| microsoft | office_2021 | * | any |
| microsoft | office_2024 | * | any |
| microsoft | office_2024 | * | any |
| microsoft | office_2024 | * | any |
References 1
- msrc.microsoft.com https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45645
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.