Which products and versions are affected by CVE-2017-8543?

Affected: Windows 10 1507 (Microsoft); Windows 10 1511 (Microsoft); Windows 10 1607 (Microsoft), among others. The full list is in the CVE brief.

Is CVE-2017-8543 being exploited in the wild?

It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jun 13, 2017.

Is CVE-2017-8543 in the CISA KEV catalog?

Yes. It was added on May 24, 2022 with a federal remediation due date of Jun 14, 2022.

Is there a public exploit for CVE-2017-8543?

Public exploit code is available.

Is there a fix for CVE-2017-8543?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2017-8543 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2017-8543

CriticalExploitedPublic exploit

Published Jun 14, 2017 · Updated Apr 22, 2026

Key Facts

Patch immediately

CVE-2017-8543 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Windows 10 1507 (Microsoft), Windows 10 1511 (Microsoft), Windows 10 1607 (Microsoft) and 8 more products.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jun 13, 2017. Public exploit code is available.
EPSS estimates a 74% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

74%

Higher than 99.4% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2017-8543 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Microsoft Windows XP SP3, Windows XP x64 XP2, Windows Server 2003 SP2, Windows Vista, Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allow an attacker to take control of the affected system when Windows Search fails to handle objects in memory, aka "Windows Search Remote Code Execution Vulnerability".

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CISA KEV	May 24, 2022	Jun 14, 2022	Not reported
Industry KEV feed	Jun 13, 2017	Jun 14, 2022	Not reported
CIRCL KEV	May 24, 2022	Jun 14, 2022	Not reported
ENISA EUVD	May 24, 2022	n/a	Not reported

Required action: Apply updates per vendor instructions.

Affected Products

18 affected entries in total

Product	Affected versions	Fixed in
Windows 10 1507Microsoft	See advisory	n/a
Windows 10 1511Microsoft	See advisory	n/a
Windows 10 1607Microsoft	See advisory	n/a
Windows 10 1703Microsoft	See advisory	n/a
Windows 7Microsoft	See advisory	n/a

6 more affected products in the full CVE brief

Timeline

Added to Industry KEV feed
Jun 13, 2017
Publicly disclosed
Jun 14, 2017
Added to CISA KEV
May 24, 2022
Added to CIRCL KEV
May 24, 2022
Added to ENISA EUVD
May 24, 2022
Last updated
Apr 22, 2026

Weakness Type

CWE-281 Improper Preservation of Permissions

References

advisory98824
advisory1038667
patchhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8543
exploitVulnCheck exploitation report
exploitVulnCheck exploitation report

1 more references in the full CVE brief

FAQ

Common Questions.

Microsoft Windows XP SP3, Windows XP x64 XP2, Windows Server 2003 SP2, Windows Vista, Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allow an attacker to take control of the affecte…
Affected: Windows 10 1507 (Microsoft); Windows 10 1511 (Microsoft); Windows 10 1607 (Microsoft), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jun 13, 2017.
Yes. It was added on May 24, 2022 with a federal remediation due date of Jun 14, 2022.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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