CVE-2017-0149highunder attackCWE-787

CVE-2017-0149: high-severity vulnerability in Microsoft Corporation Internet Explorer

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56Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA.

ssvc Actcvss 8.8epss 28%
from disclosure to weapon
Published on NVDMar 17
CISA KEV+1894d
Action required by CISAfederal deadline: 2022-06-14

Apply updates per vendor instructions.

In short

Internet Explorer versions 9 through 11 have a flaw that allows attackers to run malicious code or crash the browser by visiting a specially crafted website. This happens because the browser doesn't properly manage memory when processing certain web content.

Technical detail

A remote attacker can exploit a memory corruption vulnerability in Internet Explorer 9-11 through a crafted web page without requiring user interaction beyond visiting the malicious site. The vulnerability stems from improper memory handling (CWE-787: out-of-bounds write) and can result in arbitrary code execution or denial of service depending on browser architecture and mitigation bypass conditions.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

Microsoft Internet Explorer 9 through 11 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Internet Explorer Memory Corruption Vulnerability." This vulnerability is different from those described in CVE-2017-0018 and CVE-2017-0037.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H