CVE-2016-0998

HIGH

Adobe Flash Player <18.0.0.333 & 19.x-21.x - Use After Free

Title source: llm

Exploitation Summary

EIP tracks 2 public exploits for CVE-2016-0998. PoCs published by Google Security Research.

AI-analyzed exploit summary The exploit describes a use-after-free vulnerability in Adobe Flash's ActionScript 2 unwatch method due to an uninitialized variable. The PoC involves calling unwatch on an empty object, triggering a toString call on a non-existent parameter, leading to potential memory corruption.

Description

Use-after-free vulnerability in Adobe Flash Player before 18.0.0.333 and 19.x through 21.x before 21.0.0.182 on Windows and OS X and before 11.2.202.577 on Linux, Adobe AIR before 21.0.0.176, Adobe AIR SDK before 21.0.0.176, and Adobe AIR SDK & Compiler before 21.0.0.176 allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2016-0987, CVE-2016-0988, CVE-2016-0990, CVE-2016-0991, CVE-2016-0994, CVE-2016-0995, CVE-2016-0996, CVE-2016-0997, CVE-2016-0999, and CVE-2016-1000.

Exploits (2)

exploitdb WRITEUP VERIFIED

by Google Security Research · textremotemultiple

https://www.exploit-db.com/exploits/39631

View Code ZIP pw:eip

The exploit describes a use-after-free vulnerability in Adobe Flash's ActionScript 2 unwatch method due to an uninitialized variable. The PoC involves calling unwatch on an empty object, triggering a toString call on a non-existent parameter, leading to potential memory corruption.

Classification

Writeup 90%

Attack Type

Rce

Complexity

Moderate

Reliability

Theoretical

Target: Adobe Flash Player (versions affected by CVE-2016-0998)

No auth needed

Prerequisites: Target must have vulnerable Adobe Flash Player installed · Target must execute the malicious JavaScript code

MITRE ATT&CK

T1189 - Drive-by Compromise

devstral-2 · analyzed Feb 16, 2026 Full analysis →

exploitdb WORKING POC VERIFIED

by Google Security Research · textdoswindows

https://www.exploit-db.com/exploits/39612

View Code ZIP pw:eip

This exploit targets a use-after-free (UaF) vulnerability in Adobe Flash Player, where uninitialized stack memory is accessed during ActionScript parameter conversion. The PoC triggers a crash by manipulating stack alignment via a parameterized SWF file.