CriticalPublic exploit

Stack-based Buffer Overflow in FlipViewerX.dll (FlipViewer < 4.1)

IdentifiersCVE-2007-2919CWE-121

CVE-2007-2919 describes multiple stack-based buffer overflows in the FViewerLoading ActiveX control (FlipViewerX.dll) used by E-Book Systems FlipViewer prior to version 4.1. The vulnerabilities are triggered by supplying overly long values to several properties (UID, Opf, PAGENO, LaunchMode, SubID, BookID, LibraryID, SubURL, LoadOpf) of the ActiveX control, leading to memory corruption.

For your environment

Are you exposed to this one?

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.

Start free trial

ANALYST BRIEF

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.

Successful exploitation allows remote attackers to execute arbitrary code in the context of the user running the vulnerable ActiveX control, typically via a malicious web page. This can result in full compromise of the affected system. Alternatively, exploitation may cause a denial of service (application crash).

Mitigation

If you can’t patch tonight, do this now.

Disable or set the kill bit for the vulnerable FlipViewerX.dll ActiveX control in Internet Explorer to prevent its use in the browser. Restrict access to untrusted web content and consider using browser security features to limit ActiveX execution.

Remediation

Patch, then assume compromise.

Upgrade to FlipViewer version 4.1 or later, where the vulnerable ActiveX control has been patched to properly validate input lengths for the affected properties.

PUBLIC EXPLOITS

Exploits

1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.

VALID 1 / 1 TOTALView more in app

ebook_flipviewer_fviewerloading.rbMaturityWeaponizedFrameworkmetasploitVerified exploit

This repository contains a single Metasploit module targeting a stack buffer overflow vulnerability (CVE-2007-2919) in the FlipViewerX.dll ActiveX control (FViewerLoading) used by E-BOOK Systems FlipViewer 4.0. The exploit is delivered via a malicious HTML page served by Metasploit's HTTP server. When a vulnerable Internet Explorer browser loads the page, JavaScript instantiates the vulnerable ActiveX control and triggers the LoadOpf() method with a specially crafted argument, causing a buffer overflow and allowing arbitrary code execution. The module supports customizable payloads via the Metasploit framework, making it weaponized and suitable for real-world exploitation. The main file is written in Ruby and leverages Metasploit's HTTPServer::HTML mixin to serve the exploit. The only fingerprintable endpoint is the HTTP server delivering the malicious page, and the exploit specifically targets Windows XP/Vista systems running Internet Explorer 6 or 7 with the vulnerable FlipViewer ActiveX control installed.

Disclosed Jun 6, 2007rubybrowser

EXPOSURE SURFACE

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.

VendorProductType

E-Book SystemsFlipviewerapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

No public activity tracked yet. Mallory keeps watching.

0 SOURCESView more in app

No public activity observed for this vulnerability.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.

Start free trial

Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity