CVE-2025-30376

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-30376	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:microsoft:365_apps:-::::enterprise:::
	cpe:2.3:a:microsoft:excel:2016:::::::*
	cpe:2.3:a:microsoft:office:2019:::::::*
	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:::::-::
	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:::::macos::
	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:::::-::
	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:::::macos::
	cpe:2.3:a:microsoft:office_online_server::::::::

History

19 May 2025, 14:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-05-13 17:16

Updated : 2025-05-19 14:17

NVD link : CVE-2025-30376

Mitre link : CVE-2025-30376

CVE.ORG link : CVE-2025-30376

JSON object : View

Products Affected

microsoft

office_long_term_servicing_channel
365_apps
office
excel
office_online_server

CWE

CWE-122

Heap-based Buffer Overflow

CWE-125

Out-of-bounds Read

CWE-787

Out-of-bounds Write

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