CVE-2018-8373
Microsoft Scripting Engine Memory Corruption Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 15 April 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka "Scripting Engine Memory Corruption Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10. This CVE ID is unique from CVE-2018-8353, CVE-2018-8355, CVE-2018-8359, CVE-2018-8371, CVE-2018-8372, CVE-2018-8385, CVE-2018-8389, CVE-2018-8390.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 61.91% probability · 99th percentile
- CISA KEV
- Listed 25 March 2022 · due 15 April 2022
- Weakness
- CWE-787
- Affected
- microsoft/internet explorer
- Source
- secure@microsoft.com
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2018-8373
References
- http://www.securityfocus.com/bid/105037Broken Link, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041483Broken Link, Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8373Patch, Vendor Advisory
- http://www.securityfocus.com/bid/105037Broken Link, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041483Broken Link, Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8373Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8373US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.