CVE-2021-28325
MediumWindows SMB Information Disclosure Vulnerability
Published Apr 13, 2021 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2021-28325 is a medium-severity vulnerability (CVSS 6.5 v3.1) affecting Windows 10 (Microsoft), Windows 10 1507 (Microsoft), Windows 10 1607 (Microsoft) and 13 more products.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 62% probability of exploitation in the next 30 days.
- Fixed versions are available, including Windows 10 1507 publication, Windows 10 1607 publication, Windows 10 1803 publication.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS (30-day exploit likelihood)
62%
Higher than 99.1% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
Get the full CVE-2021-28325 brief as a PDF
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Description
Windows SMB Information Disclosure Vulnerability
Affected Products
39 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Windows 10Microsoft | 1607, 1803, 1809, 1909, 2004, 20h2 | n/a |
| Windows 10 1507Microsoft | See advisory | publication |
| Windows 10 1607Microsoft | See advisory | publication |
| Windows 10 1803Microsoft | See advisory | publication |
| Windows 10 1809Microsoft | See advisory | publication |
Patched Releases
Windows 10 1507
publication
Windows 10 1607
publication
Windows 10 1803
publication
Windows 10 1809
publication
Windows 10 1909
publication
windows 10 20H2
publication
Windows 8.1
publication
Windows Rt 8.1
publication
Windows Server 1909
publication
Windows Server 2004
publication
Windows Server 2012
publication
windows server 2012 R2
publication
Windows Server 2016
publication
Windows Server 2019
publication
windows server 20H2
publication
Timeline
Publicly disclosed
Apr 13, 2021
Last updated
Nov 21, 2024
References
FAQ
Common Questions.
Windows SMB Information Disclosure Vulnerability
Affected: Windows 10 (Microsoft) versions 1607, 1803, 1809, 1909, 2004, 20h2; Windows 10 1507 (Microsoft); Windows 10 1607 (Microsoft), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Windows 10 1507 publication, Windows 10 1607 publication, Windows 10 1803 publication.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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