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CISA KEV · Known exploitedHigh

CVE-2017-0222

Microsoft Internet Explorer

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
8.8
EPSS
29.6%
98.0% percentile
CISA KEV
Listed
Published
2017.05.12
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability29.6%
Technical severityCVSS 8.8

Vulnerability overview

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.

Affected product and versions

Product
Microsoft Internet Explorer
Affected versions
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., 9, 11
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

Apply updates per vendor instructions.

Due date: 2022.08.25
  1. 1
    Identify

    Confirm that Microsoft Internet Explorer and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
CWE-119, CWE-787
KEV added
2022.02.25
Ransomware use
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