CVE-2017-8464
Published: February 10, 2022
Official Description
Windows Shell in multiple versions of Microsoft Windows allows local users or remote attackers to execute arbitrary code via a crafted .LNK file
CISA KEV Advisory
Microsoft Windows Shell (.lnk) Remote Code Execution Vulnerability
Windows Shell in multiple versions of Microsoft Windows allows local users or remote attackers to execute arbitrary code via a crafted .LNK file
Apply updates per vendor instructions.
Risk Analysis
This Windows Shell vulnerability allows local users or remote attackers to execute arbitrary code by crafting a malicious .LNK file. With an EPSS score of 0.93878, the likelihood of exploitation is very high, and its inclusion in CISA's KEV confirms active exploitation, making this a critical vulnerability.
Active exploitation of this vulnerability has been observed in the wild, as indicated by its 'in_the_wild' exploit status and presence in CISA's KEV. Exploitation can occur locally or remotely via a crafted .LNK file.
Users should apply all available security updates for Microsoft Windows to patch this vulnerability. Implementing strict controls over file execution and user permissions can help mitigate risk.
Technical Analysis
CVE-2017-8464 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-2017-8464 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-2017-8464 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