High 8.8Known exploited (CISA KEV)Published Mar 17, 2017

CVE-2017-0149Microsoft 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 Corrup…

Updated under an hour ago (2026-10-19 06:10 UTC)

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It affects Microsoft Corporation Internet Explorer. Add what you run to find out whether that includes you.

CISA lists it as known exploited since May 24, 2022; federal agencies had to remediate by Jun 14, 2022. Treat that date as your deadline.

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Every CVE for Microsoft Corporation Internet Explorer

Exploited in the last 30 days

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: 8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-787
Known exploited: Added to CISA KEV May 24, 2022; federal remediation due Jun 14, 2022Apply updates per vendor instructions.
EPSS (exploitation in the next 30 days): 29.18% (percentile 98)
Assigned by: microsoft
NVD analysis: Analyzed
Record last updated: Oct 21, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Microsoft Corporation Internet Explorer microsoft:internet_explorer (from the name)	Internet Explorer 9 through 11	CNA record
microsoft internet_explorer microsoft:internet_explorer	9; 10; 11	NVD

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0149x-refsource-confirm, patch, vendor-advisory
http://www.securityfocus.com/bid/96724vdb-entry, x-refsource-bid, broken-link, third-party-advisory
http://www.securitytracker.com/id/1038008vdb-entry, x-refsource-sectrack, broken-link, third-party-advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-0149us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.