CVE-2019-1367

CVE-2019-1367 is a high-severity (CVSS 7.5) vulnerability in Microsoft Internet Explorer. CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by May 3, 2022. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.

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 CVE ID is unique from CVE-2019-1221.

CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1367
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1367
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1367