CVE-2018-0991

Name: CVE-2018-0991
Creator: NVD / NIST
Published: 2018-04-12T01:29:07.987+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 15.14%

Last modified Jun 17, 2026

CVE-2018-0991 is a vulnerability of currently unknown severity. A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka "Internet Explorer Memory Corruption Vulnerability." This affects Internet Explorer 11, Internet Explorer 10. This CVE ID is unique from CVE-2018-0870, CVE-2018-0997, CVE-2018-1018, CVE-2018-1020.. EPSS estimates a 15.14% chance of exploitation in the next 30 days.

Description

A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka "Internet Explorer Memory Corruption Vulnerability." This affects Internet Explorer 11, Internet Explorer 10. This CVE ID is unique from CVE-2018-0870, CVE-2018-0997, CVE-2018-1018, CVE-2018-1020.

Metrics

EPSS Probability

15.14%

96.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Microsoft	Internet Explorer	10
Microsoft	Internet Explorer	11

References

http://www.securityfocus.com/bid/103614Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040653Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0991Patch, Vendor Advisory
http://www.securityfocus.com/bid/103614Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040653Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0991Patch, Vendor Advisory

Timeline

Published: Apr 12, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-0991?

How severe is CVE-2018-0991?

Severity scoring for CVE-2018-0991 is pending analysis. The EPSS model estimates a 15.14% probability of exploitation in the next 30 days.

How do I fix CVE-2018-0991?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-0991?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST