HOMEVULNERABILITIESCVE-2017-0149
HIGHCISA KEVIN THE WILD

CVE-2017-0149

Published: May 24, 2022

EPSS:41.46%probability of exploitation in 30 daysPercentile:97.3th

Official Description

Microsoft Internet Explorer contains a memory corruption vulnerability that allows remote attackers to execute code or cause a denial-of-service (DoS) via a crafted website.

NVD Source

CISA KEV Advisory

Microsoft Internet Explorer Memory Corruption Vulnerability

Microsoft Internet Explorer contains a memory corruption vulnerability that allows remote attackers to execute code or cause a denial-of-service (DoS) via a crafted website.

Added to KEV: 2022-05-24Federal patch deadline: 2022-06-14
Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

This memory corruption vulnerability in Microsoft Internet Explorer allows a remote attacker to execute arbitrary code or cause a denial-of-service by tricking a user into visiting a malicious website. Its high EPSS score of 0.41460 and inclusion in CISA's KEV confirm active and highly likely exploitation, making it an urgent risk for systems still using Internet Explorer.

This vulnerability is actively exploited in the wild and is listed in CISA's KEV. It is remotely exploitable, typically through a user browsing to a specially crafted website.

Recommended Action

Migrate away from Internet Explorer to modern, supported web browsers. Ensure all systems are updated with the latest security patches for Internet Explorer if its use is unavoidable, and implement robust web filtering.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2017-0149 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-2017-0149 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

Mentioned vendors (from description):
Microsoft
CPE data not yet available in NVD for this CVE.

Exploit & PoC Resources

ACTIVE EXPLOITATIONConfirmed exploitation in the wild
External links open in a new tab. Always verify in a controlled environment before use.

All References (1)

Quick Facts

CVE IDCVE-2017-0149
SeverityHIGH
CISA KEVYES — Active Exploitation
ExploitIN THE WILD
EPSS (30d)41.46%
PublishedMay 24, 2022

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2017-0149 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
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.