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CVE-2014-1776 is a use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 involving the CMarkup::IsConnectedToPrimaryMarkup function. The flaw can be triggered remotely through malicious web content and results in memory corruption. Public reporting on in-the-wild exploitation showed attackers combining the Internet Explorer bug with Adobe Flash to obtain arbitrary memory access, build a runtime ROP chain, bypass DEP and ASLR, and execute shellcode. Observed exploit chains used heap manipulation and object corruption to pivot execution and then retrieve a follow-on payload. The vulnerability was actively exploited as a zero-day in targeted attacks in 2014.
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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.
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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.
An Internet Explorer vulnerability exploited by APT3 for client-side execution in targeted attacks.
A formerly zero-day vulnerability in Internet Explorer exploited by the UPS/APT3 group in 2014 and compared in the article for code and payload similarities.
A then-zero-day use-after-free vulnerability in Microsoft Internet Explorer (affecting IE6–IE11; exploit targeting IE9–IE11) leveraged with Flash heap manipulation to achieve arbitrary memory access and ultimately code execution, including bypass of ASLR and DEP via ROP.
A targeted Internet Explorer use-after-free zero-day (affecting IE6–IE11; exploit targeting IE9–IE11) that achieves arbitrary memory access and bypasses ASLR/DEP via a Flash-assisted exploitation chain and ROP, leading to code execution.
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.