CVE-2025-29956

Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.2 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29956	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_10_1507:::::::x64:*
	cpe:2.3:o:microsoft:windows_10_1507:::::::x86:*
	cpe:2.3:o:microsoft:windows_10_1607:::::::x64:*
	cpe:2.3:o:microsoft:windows_10_1607:::::::x86:*
	cpe:2.3:o:microsoft:windows_10_1809:::::::x64:*
	cpe:2.3:o:microsoft:windows_10_1809:::::::x86:*
	cpe:2.3:o:microsoft:windows_10_21h2:::::::arm64:*
	cpe:2.3:o:microsoft:windows_10_21h2:::::::x64:*
	cpe:2.3:o:microsoft:windows_10_21h2:::::::x86:*
	cpe:2.3:o:microsoft:windows_10_22h2:::::::arm64:*
	cpe:2.3:o:microsoft:windows_10_22h2:::::::x64:*
	cpe:2.3:o:microsoft:windows_10_22h2:::::::x86:*
	cpe:2.3:o:microsoft:windows_11_22h2:::::::arm64:*
	cpe:2.3:o:microsoft:windows_11_22h2:::::::x64:*
	cpe:2.3:o:microsoft:windows_11_23h2:::::::arm64:*
	cpe:2.3:o:microsoft:windows_11_23h2:::::::x64:*
	cpe:2.3:o:microsoft:windows_11_24h2:::::::arm64:*
	cpe:2.3:o:microsoft:windows_11_24h2:::::::x64:*
	cpe:2.3:o:microsoft:windows_server_2008:-:sp2::::::
	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:*
	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*
	cpe:2.3:o:microsoft:windows_server_2016::::::::
	cpe:2.3:o:microsoft:windows_server_2019::::::::
	cpe:2.3:o:microsoft:windows_server_2022::::::::
	cpe:2.3:o:microsoft:windows_server_2022_23h2::::::::
	cpe:2.3:o:microsoft:windows_server_2025::::::::

History

19 May 2025, 18:29

Type	Values Removed	Values Added
Summary		(es) La sobrelectura del búfer en SMB de Windows permite que un atacante autorizado divulgue información a través de una red.
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29956 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29956 - Vendor Advisory
CPE		cpe:2.3:o:microsoft:windows_10_1809:::::::x86:* cpe:2.3:o:microsoft:windows_server_2022:::::::: cpe:2.3:o:microsoft:windows_11_22h2:::::::arm64:* cpe:2.3:o:microsoft:windows_10_22h2:::::::x86:* cpe:2.3:o:microsoft:windows_10_21h2:::::::x86:* cpe:2.3:o:microsoft:windows_11_22h2:::::::x64:* cpe:2.3:o:microsoft:windows_10_21h2:::::::x64:* cpe:2.3:o:microsoft:windows_10_1607:::::::x64:* cpe:2.3:o:microsoft:windows_10_1507:::::::x64:* cpe:2.3:o:microsoft:windows_11_23h2:::::::x64:* cpe:2.3:o:microsoft:windows_11_24h2:::::::x64:* cpe:2.3:o:microsoft:windows_10_1607:::::::x86:* cpe:2.3:o:microsoft:windows_server_2012:-:::::::* cpe:2.3:o:microsoft:windows_10_1809:::::::x64:* cpe:2.3:o:microsoft:windows_server_2022_23h2:::::::: cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:* cpe:2.3:o:microsoft:windows_11_23h2:::::::arm64:* cpe:2.3:o:microsoft:windows_server_2019:::::::: cpe:2.3:o:microsoft:windows_10_21h2:::::::arm64:* cpe:2.3:o:microsoft:windows_11_24h2:::::::arm64:* cpe:2.3:o:microsoft:windows_server_2016:::::::: cpe:2.3:o:microsoft:windows_10_1507:::::::x86:* cpe:2.3:o:microsoft:windows_server_2008:-:sp2:::::: cpe:2.3:o:microsoft:windows_server_2025:::::::: cpe:2.3:o:microsoft:windows_10_22h2:::::::x64:* cpe:2.3:o:microsoft:windows_10_22h2:::::::arm64:* cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*
First Time		Microsoft windows Server 2008 Microsoft windows Server 2019 Microsoft windows Server 2012 Microsoft windows 11 24h2 Microsoft windows 10 1507 Microsoft windows 11 23h2 Microsoft Microsoft windows 10 22h2 Microsoft windows 10 1607 Microsoft windows Server 2022 Microsoft windows 10 21h2 Microsoft windows Server 2022 23h2 Microsoft windows 11 22h2 Microsoft windows Server 2016 Microsoft windows Server 2025 Microsoft windows 10 1809
CWE		CWE-125

13 May 2025, 17:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-05-13 17:15

Updated : 2025-05-19 18:29

NVD link : CVE-2025-29956

Mitre link : CVE-2025-29956

CVE.ORG link : CVE-2025-29956

JSON object : View

Products Affected

microsoft

windows_server_2008
windows_10_1607
windows_11_23h2
windows_10_1809
windows_10_21h2
windows_11_22h2
windows_11_24h2
windows_10_1507
windows_server_2016
windows_server_2025
windows_server_2012
windows_server_2022
windows_server_2019
windows_10_22h2
windows_server_2022_23h2

CWE

CWE-126

Buffer Over-read

CWE-125

Out-of-bounds Read

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5.4 /10