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Vulnerability record · CVE-2014-8440 · published 11 November 2014

CVE-2014-8440: Adobe Flash Player and AIR memory corruption code execution

Adobe · Flash Player

Adobe Flash Player, Adobe AIR, AIR SDK and AIR SDK & Compiler contain a memory corruption flaw reachable through unspecified vectors. Successful exploitation allows arbitrary code execution or a denial of service. The record does not describe the specific vulnerable code path.

10.0 CVSS 2.0 High EPSS 82% · top 0.4%
10.0CVSS 2.0 base score
82%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
12References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Adobe Flash Player before 13.0.0.252 and 14.x and 15.x before 15.0.0.223 on Windows and OS X and before 11.2.202.418 on Linux, Adobe AIR before 15.0.0.356, Adobe AIR SDK before 15.0.0.356, and Adobe AIR SDK & Compiler before 15.0.0.356 allow attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2014-0576, CVE-2014-0581, and CVE-2014-8441.

AV:N/AC:L/Au:N/C:C/I:C/A:C

Automated analysis

Generated by VULONE's analysis model from the NVD record, CISA KEV and EPSS data on 18 September 2026. Confidence: medium.

critical priorityCVSS 10.0 with network reachability, no authentication, full impact, and public exploit code referenced make this a top remediation priority.

What it is

Adobe Flash Player, Adobe AIR, AIR SDK and AIR SDK & Compiler contain a memory corruption flaw reachable through unspecified vectors. Successful exploitation allows arbitrary code execution or a denial of service. The record does not describe the specific vulnerable code path.

Impact

An attacker can execute arbitrary code in the context of the affected process or crash it, giving full control of confidentiality, integrity and availability per the CVSS vector.

Attack surface

The CVSS vector AV:N/AC:L/Au:N/C:C/I:C/A:C indicates the flaw is reachable over the network with no authentication and no user interaction required, though the description does not specify the exact delivery mechanism.

Exploitation

CISA KEV does not list this CVE, but EPSS is 0.81943 (99.6th percentile) and an Exploit-DB entry is referenced, indicating public exploit code exists.

What to do

  • Upgrade Flash Player to 13.0.0.252 or later, 15.0.0.223 or later on Windows/OS X, and 11.2.202.418 or later on Linux.
  • Upgrade Adobe AIR, AIR SDK and AIR SDK & Compiler to 15.0.0.356 or later.
  • Remove or disable Flash Player and AIR where they are not required, since the platform is end-of-life.
  • Restrict network access to untrusted Flash content and block legacy plugin execution via browser policy.

Detection

  • Monitor for Flash Player or AIR process crashes consistent with memory corruption.
  • Hunt for child processes spawned by Flash Player or AIR, which may indicate code execution.
  • Review proxy and IDS logs for delivery of Flash content from untrusted or newly seen hosts.

This assessment is produced automatically and is not human-reviewed. Verify against the vendor advisory before acting on it.

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

Track CVE-2014-8440 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2016-4171Adobe Flash Player unspecified remote code execution flawCVE-2016-4171 is an unspecified vulnerability in Adobe Flash Player 21.0.0.242 and earlier that allows remote attackers to execute arbitrary code thr…KEVEPSS 20%analysed9.8CVE-2016-4117Adobe Flash Player unspecified vectors allow arbitrary code executionAdobe Flash Player 21.0.0.226 and earlier contains a critical flaw that lets remote attackers execute arbitrary code through unspecified vectors. Ado…KEVEPSS 94%analysed9.8CVE-2016-1019Adobe Flash Player memory corruption allows code executionAdobe Flash Player 21.0.0.197 and earlier contains an unspecified memory corruption flaw that can crash the application or allow arbitrary code execu…KEVEPSS 22%analysed9.8CVE-2015-5123Adobe Flash Player ActionScript 3 BitmapData use-after-freeAdobe Flash Player contains a use-after-free in the ActionScript 3 BitmapData class, triggered by crafted Flash content that overrides a valueOf func…KEVEPSS 19%analysed9.8CVE-2015-5122Adobe Flash Player ActionScript 3 Use-After-Free in DisplayObjectA use-after-free flaw in the DisplayObject class of Adobe Flash Player's ActionScript 3 implementation is triggered by crafted Flash content that mis…KEVEPSS 94%analysed9.8CVE-2015-5119Adobe Flash Player ActionScript 3 ByteArray use-after-freeA use-after-free flaw exists in the ByteArray class of the ActionScript 3 implementation in Adobe Flash Player. Crafted Flash content that overrides …KEVEPSS 99%analysed9.8CVE-2015-3113Adobe Flash Player heap buffer overflow allows remote code executionAdobe Flash Player contains a heap-based buffer overflow (CWE-122/CWE-787) reachable through unspecified vectors. It affects Flash Player before 13.0…KEVEPSS 100%analysed9.8CVE-2015-3043Adobe Flash Player memory corruption allows arbitrary code executionAdobe Flash Player contains an out-of-bounds write (CWE-787) that corrupts memory and can lead to arbitrary code execution or a denial of service. Th…KEVEPSS 74%analysed

Source: NIST National Vulnerability Database (record CVE-2014-8440), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.