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Vulnerabilities

Vulnerability · CVE-2017-0149

Microsoft Internet Explorer Memory Corruption Vulnerability

Published Mar 14, 2017 · catalog updated Jun 16, 2026 · Microsoft Internet Explorer

Patch now

CVE-2017-0149 is in the CISA known-exploited catalog, due Jun 14, 2022. Confirm Microsoft Internet Explorer against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
High8.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
29.18%
Remediation
Remediation guidance
Affected products
cpe microsoft/internet explorer · vendor Microsoft Internet Explorer

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe microsoft/internet explorer10
  • cpe microsoft/internet explorer11
  • cpe microsoft/internet explorer9
  • vendor Microsoft Internet Explorerversion unspecified

How to fix CVE-2017-0149

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2017-0149 is in the CISA known-exploited catalog, due Jun 14, 2022. Confirm Microsoft Internet Explorer against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with microsoft/internet explorer 10; microsoft/internet explorer 11; microsoft/internet explorer 9. Apply updates per vendor instructions.

What should an analyst verify?

CWE-119: Buffer Overflow; CWE-787: Out-of-bounds Write. EPSS 29.18%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 16, 2017 · Catalog

    Detected

    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.

  2. May 24, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Jun 14, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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.

Sources

  • CISA KEVConfirmed exploitationCVE-2017-0149

    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.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2017-0149

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2017-0149

    30-day exploitation probability 29.2%

    first.org
  • NIST NVDVulnerability recordCVE-2017-0149

    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-

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2017-0149

    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.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.