Internet Explorer CDisplayPointer use-after-free memory corruption
CVE-2013-3897 is a use-after-free vulnerability in the CDisplayPointer class within mshtml.dll in Microsoft Internet Explorer 6 through 11. The flaw is triggered by crafted JavaScript that abuses the onpropertychange event handler, causing Internet Explorer to access freed memory and resulting in memory corruption. Microsoft referred to it as an Internet Explorer Memory Corruption Vulnerability, and reporting in the provided content indicates it was exploited in the wild in 2013 and later incorporated into exploit kits including Sedkit and Grandsoft/Private EK. ESET’s reporting specifically notes Sedkit used this vulnerability against Internet Explorer 8 as part of a targeted exploit chain.
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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
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A specific vulnerability included in Grandsoft Private EK according to the table.
An Internet Explorer 8 vulnerability used as an exploit module in Sednit’s custom exploit kit (Sedkit).
An Internet Explorer 8 vulnerability exploited by Sedkit in targeted attacks.
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.