CVE-2025-29956
Medium
Published: 13 May 2025
Published
13 May 2025
Modified
19 May 2025
KEV Added
—
Patch
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CVSS Score v3.1
5.4
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:L
EPSS Score
0.0059
69.7th percentile
Risk Priority
11
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2025-29956 is a medium-severity Buffer Over-read (CWE-126) vulnerability in Microsoft Windows 10 21H2. Its CVSS base score is 5.4 (Medium).
Operationally, ranked in the top 30.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-14420
Vulnerability details
Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
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 · ≤ 10.0.19044.5854
microsoft
windows 10 22h2
≤ 10.0.19045.5854 · ≤ 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 server 2008
all versions, r2
microsoft
windows server 2012
all versions, r2
+5 more product configuration(s) — see NVD for full list
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.