Is CVE-2017-8543 known to be exploited?

Yes. CVE-2017-8543 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-24), indicating it is being actively exploited. 9 public proof-of-concept repositories are indexed.

Vulnerability in Microsoft Corporation Windows

CVE-2017-8543

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, an…

EPSS: 0.851 (99.4th percentile) — read the EPSS interpretation.

Affected products

Microsoft Corporation Windows — versions 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.

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-05-24. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-06-14.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

98824 (vdb-entry, x_refsource_BID)
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8543 (x_refsource_CONFIRM)
1038667 (vdb-entry, x_refsource_SECTRACK)

Frequently asked questions

What is CVE-2017-8543?: CVE-2017-8543 is a vulnerability in Microsoft Corporation Windows. Published 2017-06-15.
Is CVE-2017-8543 known to be exploited?: Yes. CVE-2017-8543 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-24), indicating it is being actively exploited. 9 public proof-of-concept repositories are indexed.