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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 affects the legacy JScript/VBScript scripting engine used by Internet Explorer and is described by Microsoft as a scripting engine memory corruption vulnerability. Available reporting also characterizes the bug as a use-after-free condition in jscript.dll related to the same general exploit lineage as earlier Internet Explorer JScript vulnerabilities. Successful exploitation occurs when Internet Explorer processes attacker-controlled script content, allowing memory corruption and execution of attacker-supplied code in the context of the current user.
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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.
10 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.
Another Internet Explorer JScript garbage-collection vulnerability discussed as a second patch/follow-on to CVE-2020-0674 and evidence of incomplete remediation.
A specific vulnerability referenced only as part of attribution linkage to the earlier Operation Domino campaign; the current article does not analyze the flaw itself.
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.