CVE-2017-0222VulnerabilityPublished 02/25/2022Updated 10/24/2026

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

Affects Microsoft Internet ExplorerSource CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 02/25/2022
KEV deadline: 08/25/2022
EPSS: 29.6% chance of exploitation in 30 days – higher than 98% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2017-0222 (opens in a new tab)

Description

CVE-2017-0222 is a high-severity remote code execution vulnerability in Microsoft Internet Explorer. It occurs due to improper access to objects in memory, allowing attackers to execute arbitrary code remotely. This vulnerability has been exploited in the wild.

Summary

This vulnerability in Microsoft Internet Explorer allows remote attackers to execute arbitrary code by exploiting improper memory object access. The flaw is identified as CWE-119, indicating a classic memory safety issue. Exploitation can lead to full compromise of the affected system. It has been observed in active attacks, underscoring its critical nature.

Impact

Successful exploitation enables remote code execution, potentially allowing attackers to take control of affected systems. Given that it has been exploited in the wild, the risk to users running vulnerable versions of Internet Explorer is significant.

Mitigation

No explicit patch or remediation details are provided in the available data. Users should consult the official Microsoft security advisories for CVE-2017-0222 to confirm patch availability and apply any official fixes. Until patched, consider disabling or restricting use of Internet Explorer to mitigate risk.

Weaknesses

CWE-119Buffer Errors (Memory Bounds) (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 10:11:58 UTC

Weaknesses

References

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