Loading vulnerability…
CVE-2019-1367 is a remote code execution vulnerability in Microsoft Internet Explorer caused by memory corruption in the legacy JScript engine implemented in jscript.dll. Available technical analysis describes the flaw as a use-after-free condition in which the garbage collector fails to properly track JScript values or callback arguments during Array.sort() processing, including scenarios involving the Enumerator object. Because an object still in use is not rooted correctly, garbage collection can reclaim it prematurely, leaving a dangling pointer that can later be dereferenced. Successful exploitation allows attacker-controlled script delivered through a malicious web page to corrupt memory and execute code in the context of the browser process. The issue affected Internet Explorer 8 through 11 when the vulnerable legacy scripting engine was invoked, including through IE8 compatibility mode.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
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.
20 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A remote code execution vulnerability in Internet Explorer's jscript.dll caused by improper garbage collection tracking of JScript variables/function arguments, actively exploited in the wild and used by both an APT and an exploit kit.
An Internet Explorer scripting-engine vulnerability used by a related malicious site to install a backdoor, including via forced IE8 compatibility mode.
An Internet Explorer vulnerability for which DarkHotel reportedly developed a new exploit to target China.
A vulnerability mentioned only as another historical example of a flaw later reused by exploit-kit operators.
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.