CVE-2017-8570
Published: February 25, 2022
Official Description
A remote code execution vulnerability exists in Microsoft Office software when it fails to properly handle objects in memory.
CISA KEV Advisory
Microsoft Office Remote Code Execution Vulnerability
A remote code execution vulnerability exists in Microsoft Office software when it fails to properly handle objects in memory.
Apply updates per vendor instructions.
Risk Analysis
A remote code execution vulnerability exists in Microsoft Office, stemming from improper memory handling. The high EPSS score of 0.94247 indicates a significant probability of exploitation. This vulnerability is confirmed to be exploited in the wild, as listed in the CISA KEV catalog.
This vulnerability is actively exploited in the wild. Attackers can achieve remote code execution through specially crafted objects.
Apply all available security updates for Microsoft Office software. Regularly patching and updating software is crucial to prevent exploitation of known vulnerabilities.
Technical Analysis
CVE-2017-8570 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2017-8570 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2017-8570 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1