CVE-2017-8570VulnerabilityPublished 02/25/2022Updated 10/24/2026

CVE-2017-8570: Microsoft Office Remote Code Execution Vulnerability

Affects Microsoft OfficeSource 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: 89.9% chance of exploitation in 30 days – higher than 99% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2017-8570 (opens in a new tab)

Description

CVE-2017-8570 is a remote code execution vulnerability in Microsoft Office caused by improper handling of objects in memory. This flaw allows an attacker to execute arbitrary code remotely. The vulnerability has been exploited in the wild, indicating active threat usage. No specific affected versions or patch information are provided in the input data.

Summary

This vulnerability in Microsoft Office arises from improper memory object handling, enabling remote code execution. Exploitation can lead to arbitrary code execution on affected systems. The vulnerability is known to be exploited in the wild, highlighting its practical risk. No detailed version or patch data is available in the provided information.

Impact

Successful exploitation allows remote attackers to execute arbitrary code on vulnerable Microsoft Office installations, potentially leading to full system compromise. The presence of known in-the-wild exploitation increases the urgency of addressing this vulnerability.

Mitigation

Patch status is not yet confirmed — check the Microsoft vendor advisory for current remediation guidance. Until official fixes are confirmed, users should apply any available security updates from Microsoft and follow best practices for handling untrusted Office documents.

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 10:12:00 UTC

References

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