CVE-2017-0210
Published: May 24, 2022
Official Description
A privilege escalation vulnerability exists when Internet Explorer does not properly enforce cross-domain policies, which could allow an attacker to access information.
CISA KEV Advisory
Microsoft Internet Explorer Privilege Escalation Vulnerability
A privilege escalation vulnerability exists when Internet Explorer does not properly enforce cross-domain policies, which could allow an attacker to access information.
Apply updates per vendor instructions.
Risk Analysis
This Internet Explorer vulnerability allows for privilege escalation by improperly enforcing cross-domain policies, potentially giving an attacker access to sensitive information. Its confirmed exploitation by CISA (is_in_kev: true) and high EPSS score of 0.36440 indicate a significant and urgent risk.
Active exploitation of this vulnerability has been observed in the wild, and it is listed in the CISA Known Exploited Vulnerabilities Catalog. This confirms its effectiveness in real-world attacks.
Ensure Internet Explorer is updated to the latest version. Consider using alternative, more secure web browsers and implement robust endpoint security measures to prevent initial compromise.
Technical Analysis
CVE-2017-0210 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-2017-0210 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.
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2017-0210 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