RCE in Microsoft Windows Scripting Engine (Edge IE Mode)
CVE-2024-38178 is a Microsoft Windows Scripting Engine memory corruption vulnerability in the legacy Internet Explorer Chakra scripting engine (jscript9.dll). The issue affects use of Microsoft Edge in Internet Explorer Mode, where crafted web content can trigger memory corruption in the scripting engine and lead to remote code execution. Supporting reporting describes the bug as being exploited via malicious or compromised advertising content and crafted URLs, with public technical characterization indicating a type confusion condition in jscript9.dll. Microsoft patched the vulnerability in its August 2024 Patch Tuesday release, and exploitation in the wild was reported prior to patching.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
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.
Recent activity
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A zero-day vulnerability exploited in the wild in 2024, attributed to North Korean state-sponsored and financially motivated groups.
A memory corruption vulnerability in the Windows Scripting Engine (jscript9.dll) that allows remote code execution when using Edge in Internet Explorer Mode. Exploitation requires user interaction via a crafted URL and has been used in targeted attacks by ScarCruft (APT37) to deliver malware.
A memory corruption vulnerability in the Windows Scripting Engine, actively exploited in the wild.
Windows Scripting Engine memory corruption vulnerability; listed among actively exploited zero-days fixed by Microsoft.
The version that knows your environment.
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.