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Vulnerabilities/CVE-2017-0222Public Intelligence Dossier
Source: microsoft · Limited verification•Last verified: •Collection Degraded
CVE-2017-0222ListedHIGH (raw)CVSS 8.8CWE-787

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.

Published: 12 May 2017•Last updated: 17 Jun 2026, 06:27 AM IST•Source identifier: secure@microsoft.com
Dossier completeness: source-provided sections 3 / 3 · rule guidance available. Missing source facts count as incomplete.
Official source
CISA KEV catalog
Listed
Added25 Feb 2022
Due25 Aug 2022
RansomwareUnknown
CVSS score
8.8HIGH (raw)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Metric sourcenvd@nist.gov
EPSS probability
29.6%0.296
Percentile98th
Weakness type
CWE-787
No further CWE recorded
Remediation
Patch status unknown
No fixed version or KB recorded

Why It Matters

Analysis dossier

Why It Matters

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.

SOC priority

Immediate Attention

Actively exploited (source statement)

Yes

Publicly disclosed

Unknown

Risk basis: CISA KEV exploitation signal; Microsoft or Microsoft-managed product relevance; HIGH severity; Source-confirmed exploitation or CISA KEV/ransomware metadata

Affected Products & Remediation

1 source-backed product
Affected products and versions (source)
  • microsoft internet explorer · 9; 11 · NVD CPE · Source
NVD applicability prerequisites: cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_10_1507:-:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_10_1511:-:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_10_1703:-:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*, cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*. These are conditions, not proof that an environment is exposed or unaffected.
Recorded patch / KBNot provided by source

Vendor or catalog guidance (source)

  • CISA KEV: Apply updates per vendor instructions.

Known exploitation (source facts)

Only what a source states. Unknown means no source has said either way; it is not "not exploited".

CISA KEV
Listed
Exploited (source statement)
Yes
Publicly disclosed (source)
Unknown

CISA required action: Apply updates per vendor instructions.

Suggested hunting (rule-based inference)

SecOps Signal recommendation (rule-based inference). These steps are hunting hypotheses from the vulnerability class; they do not state or imply that exploitation occurred here or anywhere.

Matched kev-network-exposure (CVSS AV:N, CISA KEV Listed); user-interaction-client (CVSS AV:N, CVSS UI:R)

Exposure

  1. Identify assets with the exact CVE and confirm the affected product/version against the advisory.Telemetry: DeviceTvmSoftwareVulnerabilities · KEV listing raises urgency, but inventory is needed to establish local exposure. · Rule kev-network-exposure
  2. Identify endpoints reporting this CVE, especially those used for email and web browsing.Telemetry: DeviceTvmSoftwareVulnerabilities · A network vector that needs user interaction points at user-facing client software. · Rule user-interaction-client

Exploitation evidence

  1. Review relevant edge or application access logs for unusual requests around the advisory window.Telemetry: CommonSecurityLog · Log review is a hunting hypothesis; KEV listing alone does not show local exploitation. · Rule kev-network-exposure
Show more (2)

Exploitation evidence

  1. Review unusual child processes started by the affected client application on affected endpoints.Telemetry: DeviceProcessEvents · Hunting hypothesis from the CVSS vector; it does not show that exploitation occurred. · Rule user-interaction-client

Response

  1. Recheck the affected assets after the source-stated mitigation or update is applied.Telemetry: DeviceTvmSoftwareVulnerabilities · A follow-up inventory check verifies local remediation. · Rule kev-network-exposure

CISA KEV Record

Catalog entry
25 Feb 2022
Required action due
25 Aug 2022
Known ransomware use
Unknown

Apply updates per vendor instructions.

Change History & Source Data

— No recorded material change

CNA / source
secure@microsoft.com
Record status · verification
UPDATED · Microsoft primary source linked; CISA KEV confirmed
CPE
cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*, cpe:2.3:a:microsoft:internet_explorer:11:-:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_10_1507:-:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_10_1511:-:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_10_1703:-:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*

Evidence & Provenance

4 public sources
CISA KEV CatalogAdded 2022-02-25portal.msrc.microsoft.comSource recordnvd.nist.govSource recordcisa.govSource record

Linked by the query's stored exact CVE association. Review required tables and validation status before use.

Detection Hunting Query
Target: DeviceTvmSoftwareVulnerabilities•Defender XDR
Detect endpoints exposed to CVE-2017-0222
Purpose: Exposure assessment (Category: Exposure Check)Why linked: Query metadata names CVE-2017-0222
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2017-0222"| project DeviceId, DeviceName, OSPlatform, OSVersion, SoftwareVendor, SoftwareName, SoftwareVersion, CveId, VulnerabilitySeverityLevel, RecommendedSecurityUpdate, RecommendedSecurityUpdateId| sort by VulnerabilitySeverityLevel desc
Schema Checked · Not runtime validatedSource: SecOps Signal deterministic template · Limited verificationStatic screening: Passed structure and schema checks; tenant execution is not verified.
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Correlated briefings

SecOps Signal surfaces public advisory facts only. A missing value means the source has not published it, not that your environment is unaffected. No tenant inventory is connected.