SARA / Free Tools / CVE / CVE-2017-0222

CVE-2017-0222 — Microsoft Internet Explorer Remote Code Execution Vulnerability

A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka "Internet Explorer Memory Corruption Vulnerability." This CVE ID is unique from CVE-2017-0226.

CVSS

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EPSS

61.98% (top 1.70%)

CWE

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Published

2017-05-12T14:00:00.000Z

Last modified

2025-10-21T23:55:41.048Z

CVSS vector

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CISA KEV — Actively Exploited

Added to KEV

2022-02-25

BOD 22-01 due

2022-08-25

Ransomware use

Unknown

View KEV detail

CVE-2017-0222 on CISA KEV →

01What is this vulnerability?

02Affected products

Vendor	Product	Versions
Microsoft Corporation	Internet Explorer	Windows Server 2008 for 32-bit Systems Service Pack 2, Windows Server 2008 for x64-based Systems Service Pack 2, Windows 7 for 32-bit Systems Service Pack 1, Windows 7 for x64-based Systems Service Pack 1, Windows 8.1 for 32-bit systems, Windows 8.1 for x64-based systems, Windows RT 8.1, Windows Server 2012, Windows Server 2012 R2, Windows 10 for 32-bit Systems, Windows 10 for x64-based Systems, Windows 10 Version 1511 for 32-bit Systems, Windows 10 Version 1511 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1703 for 32-bit Systems, Windows 10 Version 1703 for x64-based Systems, and Windows Server 2016.

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2022-02-25. Ransomware use: Unknown.

04Recommended remediation

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

CVE-2017-0226

Cited in vendor advisory

08Timeline

Published: 2017-05-12T14:00:00.000Z
Last modified: 2025-10-21T23:55:41.048Z
Added to CISA KEV: 2022-02-25
BOD 22-01 due: 2022-08-25

09References

portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0222
www.securityfocus.com — http://www.securityfocus.com/bid/98127
www.securitytracker.com — http://www.securitytracker.com/id/1038423

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