High
Internet Explorer RCE through scripting engine memory corruption (IE 9, 10, 11)
Internet Explorer RCE through scripting engine memory corruption (IE 9, 10, 11)
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 CVE ID is unique from CVE-2019-1426, CVE-2019-1427, CVE-2019-1428.
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Technical Analysis
Since this is being exploited in the wild, and affects a wide range of Internet Explorer versions, it looks like it will have some longterm success in targeted phishing and malvertizing campaigns. IE might be down to just 2% of usage, but it’s the only option out of the box on most WIndows Server versions, so it’s at least easy-ish to be running a vulnerable version until you can get patches applied or download a different browser first.
Probably only urgent to patch if you actually use it.
Technical Analysis
Reported as exploited in the wild as part of Google’s 2020 0day vulnerability spreadsheet they made available at https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit#gid=1869060786. Original tweet announcing this spreadsheet with the 2020 findings can be found at https://twitter.com/maddiestone/status/1329837665378725888
CVSS V3 Severity and Metrics
General Information
Vendors
- microsoft
Products
- internet explorer 10,
- internet explorer 11,
- internet explorer 9
Exploited in the Wild
