CVE-2025-29956
published 2025-05-13CVE-2025-29956: Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network.
PriorityP431medium5.4CVSS 3.1
AVNACHPRLUIRSUCHINAL
EPSS
0.83%
53.4th percentile
Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network.
Affected
47 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10_1507 | < 10.0.10240.21014 | 10.0.10240.21014 |
| microsoft | windows_10_1607 | < 10.0.14393.8066 | 10.0.14393.8066 |
| microsoft | windows_10_1809 | < 10.0.17763.7314 | 10.0.17763.7314 |
| microsoft | windows_10_21h2 | < 10.0.19044.5854 | 10.0.19044.5854 |
| microsoft | windows_10_22h2 | < 10.0.19045.5854 | 10.0.19045.5854 |
| microsoft | windows_10_version_1507 | >= 10.0.10240.0 < 10.0.10240.21014 | 10.0.10240.21014 |
| microsoft | windows_10_version_1607 | >= 10.0.14393.0 < 10.0.14393.8066 | 10.0.14393.8066 |
| microsoft | windows_10_version_1809 | >= 10.0.17763.0 < 10.0.17763.7314 | 10.0.17763.7314 |
| microsoft | windows_10_version_21h2 | >= 10.0.19044.0 < 10.0.19044.5854 | 10.0.19044.5854 |
| microsoft | windows_10_version_22h2 | >= 10.0.19045.0 < 10.0.19045.5854 | 10.0.19045.5854 |
| microsoft | windows_11_22h2 | < 10.0.22621.5335 | 10.0.22621.5335 |
| microsoft | windows_11_23h2 | < 10.0.22631.5335 | 10.0.22631.5335 |
| microsoft | windows_11_24h2 | < 10.0.26100.4061 | 10.0.26100.4061 |
| microsoft | windows_11_version_22h2 | >= 10.0.22621.0 < 10.0.22621.5335 | 10.0.22621.5335 |
| microsoft | windows_11_version_22h3 | >= 10.0.22631.0 < 10.0.22631.5335 | 10.0.22631.5335 |
| microsoft | windows_11_version_23h2 | >= 10.0.22631.0 < 10.0.22631.5335 | 10.0.22631.5335 |
| microsoft | windows_11_version_24h2 | >= 10.0.26100.0 < 10.0.26100.4061 | 10.0.26100.4061 |
| microsoft | windows_server_2008 | — | — |
| microsoft | windows_server_2008_r2_service_pack_1 | >= 6.1.7601.0 < 6.1.7601.27729 | 6.1.7601.27729 |
| microsoft | windows_server_2008_service_pack_2 | >= 6.0.6003.0 < 6.0.6003.23279 | 6.0.6003.23279 |
| microsoft | windows_server_2012 | — | — |
| microsoft | windows_server_2012 | >= 6.2.9200.0 < 6.2.9200.25475 | 6.2.9200.25475 |
| microsoft | windows_server_2012_r2 | >= 6.3.9600.0 < 6.3.9600.22577 | 6.3.9600.22577 |
| microsoft | windows_server_2016 | < 10.0.14393.8066 | 10.0.14393.8066 |
| microsoft | windows_server_2016 | >= 10.0.14393.0 < 10.0.14393.8066 | 10.0.14393.8066 |
CVSS provenance
nvdv3.15.4MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:L
vendor_msrc5.4MEDIUM
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Microsoft
Windows SMB Information Disclosure Vulnerability
vendor_msrc·2025-05-13·CVSS 5.4
CVE-2025-29956 [MEDIUM] CWE-126 Windows SMB Information Disclosure Vulnerability
Windows SMB Information Disclosure Vulnerability
Description: Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network.
FAQ: According to the CVSS metric, user interaction is required (UI:R) and privileges required is low (PR:L). What does that mean for this vulnerability?
The attack requires to trick a user to open an SMB share folder that is hosted on the attacker-controlled system. Windows Explorer has to automatically register for directory change notification after opening the share folder.
FAQ: What type of information could be disclosed by this vulnerability?
An attacker who successfully exploited this vulnerability could potentially read small portions of heap memory.
FAQ: How could an attacker exploit the vulnerability?
To successful
GHSA
GHSA-mjqj-43pc-37r9: Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network
ghsa_unreviewed·2025-05-13
CVE-2025-29956 [MEDIUM] CWE-125 GHSA-mjqj-43pc-37r9: Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network
Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network.
No detection rules found.
No public exploits indexed.
2025-05-13
Published