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CVE-2015-5122 is a use-after-free vulnerability in Adobe Flash Player’s ActionScript 3 implementation, specifically in the DisplayObject class during handling of the opaqueBackground property. A crafted Flash object can trigger memory corruption by causing Flash to access an object after it has been freed. The flaw affects multiple Adobe Flash Player releases on Windows, OS X, and Linux, including browser-integrated Chrome Flash on Linux. Successful exploitation can result in arbitrary code execution, and the vulnerability was exploited in the wild shortly after public disclosure associated with the Hacking Team breach.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module that exploits a use-after-free vulnerability (CVE-2015-5122) in Adobe Flash Player's handling of the opaqueBackground property. The exploit targets Windows systems (XP through 10) running vulnerable versions of Flash Player (<= 18.0.0.203) in browsers such as Internet Explorer and Firefox. The module sets up a browser exploit server that delivers a malicious HTML page embedding a crafted SWF file. When a victim visits the attacker's page, the SWF triggers the vulnerability, allowing execution of a Metasploit payload (such as a reverse shell) on the victim's machine. The module references the official Flash ActiveX control download URL and uses a local SWF file as the exploit vector. The code is written in Ruby and is structured as a typical Metasploit exploit module, with clear separation of initialization, payload delivery, and exploit logic.
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.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Flash vulnerability referenced as having been used in an earlier, separate but apparently related exploitation campaign targeting Taiwanese government networks.
An Adobe Flash vulnerability (zero-day at time of leak) disclosed via the 2015 Hacking Team leak.
An Adobe Flash zero-day vulnerability disclosed via the Hacking Team data dump and used by the Hunter exploit kit.
A vulnerability mentioned only as part of a next-article link, not discussed in the body of this content.
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.