Vulnerability Monitor

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CVE-2017-8493

Microsoft Windows 8.1 and Windows RT 8.1, Windows Server 2012 R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allow an attacker to set variables that are either read-only or require authentication when Windows fails to enforce case sensitivity for certain variable checks, aka "Windows Security Feature Bypass Vulnerability".

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.5, requiring local system access to exploit with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts integrity (unauthorized modifications), for affected systems. Impacting 5 products from microsoft, from microsoft, from microsoft and 2 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2017, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2017-06-15T01:29:03.523

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 5.5 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:N/I:P/A:N

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

3.9

Impact Score

2.9

Weaknesses

Type: Primary
CWE-178

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	microsoft	windows_10	-	Yes
Operating System	microsoft	windows_10	1511	Yes
Operating System	microsoft	windows_10	1607	Yes
Operating System	microsoft	windows_10	1703	Yes
Operating System	microsoft	windows_8.1	-	Yes
Operating System	microsoft	windows_rt_8.1	-	Yes
Operating System	microsoft	windows_server_2012	r2	Yes
Operating System	microsoft	windows_server_2016	-	Yes

References

http://www.securityfocus.com/bid/98850 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1038671 Third Party Advisory, VDB Entry ([email protected])
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8493 Patch, Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/98850 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1038671 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8493 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For microsoft's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.