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CVE-2020-0968 is a remote code execution vulnerability in the Microsoft Internet Explorer scripting engine caused by improper handling of objects in memory. The flaw is described by Microsoft as a scripting engine memory corruption vulnerability and has been associated with memory corruption in the JScript engine. Available reporting indicates the issue was exploited through crafted web content, including malicious HTML delivered via browser-based infection chains, to corrupt memory and execute attacker-controlled code in the context of the current user. The vulnerability was patched by Microsoft in April 2020 and was reported as exploited in the wild. Based on the available mapping context, the weakness is consistent with an out-of-bounds write leading to memory corruption.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A related scripting engine vulnerability patched by Microsoft and reportedly exploited in the wild, though the article says its relation to the same bug class is unknown.
An Internet Explorer vulnerability used to attack IE users via malicious websites and deliver Magniber ransomware.
A memory corruption vulnerability in a web browser scripting engine that the content states was exploited in the wild.
A web browser scripting engine memory corruption vulnerability that the content states was exploited in the wild.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.