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CVE-2017-0159

15
FAUCET Score

CVE-2017-0159 is a security feature bypass vulnerability affecting Windows 10 1607, Windows Server 2012 R2, and Windows 2016, where ADFS incorrectly processes Extranet requests as Intranet requests. This vulnerability has a low CVSS score of 3.7, indicating a low attack complexity and potential impact limited to integrity. While there is no known active exploitation, public exploit code, or KEV entry, it has received minimal community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
1607CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*
1703CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*
r2CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

3.7LOW

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.65%
Probability of exploitation in next 30 days
EPSS Percentile
88.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0365 is in the 87th percentile among its peer group of 1,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1703 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2016
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1607 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2012 R2
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2012 R2 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2016 (Server Core installation)
View patch

Vendor Advisories (1)

microsoft2017-Apr/CVE-2017-0159Important

ADFS Security Feature Bypass Vulnerability

Apr 11, 2017

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2017-0159
PatchVendor Advisory
securityfocus.com / bid/97449
Third Party AdvisoryVDB Entry
securitytracker.com / id/1038243