HighCISA KEVExploited in the wildPublic exploit

Integer Overflow RCE in Adobe Flash Player and Adobe AIR

IdentifiersCVE-2015-8651CWE-190· Integer Overflow or Wraparound

CVE-2015-8651 is an integer overflow vulnerability in Adobe Flash Player and related Adobe AIR components. It affects Adobe Flash Player before 18.0.0.324, 19.x and 20.x before 20.0.0.267 on Windows and OS X, Flash Player before 11.2.202.559 on Linux, Adobe AIR before 20.0.0.233, Adobe AIR SDK before 20.0.0.233, and Adobe AIR SDK & Compiler before 20.0.0.233. The flaw can be triggered through crafted Flash content and allows arbitrary code execution. Public reporting associates the vulnerability with exploit-kit and watering-hole delivery, where a malicious or compromised website serves Flash content that selects this exploit based on the victim’s installed Flash version.

For your environment

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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 arbitrary code execution in the context of the affected application, typically the user running the browser or Adobe runtime. In practical attack chains, this enables initial compromise of the endpoint, deployment of additional malware, persistence staging, credential theft tooling, and follow-on lateral movement depending on the privileges available on the compromised host.

Mitigation

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

Disable or uninstall Adobe Flash Player where not strictly required. Restrict execution of Flash content in browsers through click-to-play, application control, browser hardening, and content filtering. Reduce exposure to drive-by exploitation by limiting access to untrusted or compromised sites, isolating browsing activity, and using endpoint protections that block exploit behavior. Where Flash cannot be removed immediately, tightly control plugin availability and verify that update channels are not blocked by proxy or connectivity issues.

Remediation

Patch, then assume compromise.

Upgrade Adobe Flash Player to 18.0.0.324 or later in the 18.x branch, 20.0.0.267 or later for affected 19.x/20.x installations, and 11.2.202.559 or later on Linux. Upgrade Adobe AIR, Adobe AIR SDK, and Adobe AIR SDK & Compiler to 20.0.0.233 or later. Remove or disable unsupported Flash installations and ensure enterprise update mechanisms can successfully retrieve and deploy vendor patches across all endpoints.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

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

AdobeAirapplication

AdobeAir Sdkapplication

AdobeAir Sdk & Compilerapplication

AdobeFlash Playerapplication

Hewlett Packard EnterpriseInsight Controlapplication

Hewlett Packard EnterpriseInsight Control Server Provisioningapplication

Hewlett Packard EnterpriseMatrix Operating Environmentapplication

Hewlett Packard EnterpriseSystem Management Homepageapplication

Hewlett Packard EnterpriseSystems Insight Managerapplication

Hewlett Packard EnterpriseVersion Control Repository Managerapplication

OpensuseEvergreenoperating_system

OpensuseOpensuseoperating_system

Red HatEnterprise Linux Desktopoperating_system

Red HatEnterprise Linux Serveroperating_system

Red HatEnterprise Linux Workstationoperating_system

SuseLinux Enterprise Desktopoperating_system

SuseLinux Enterprise Workstation Extensionoperating_system

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

ACTIVITY FEED

Recent activity

7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

7 SOURCESView more in app

eset welivesecurity blogNews

Dec 6, 2016

An Adobe Flash Player vulnerability used by the Stegano exploit kit to compromise victims, selected based on the installed Flash version.

mitre attackNews

Jan 25, 2026

Exploitation for Client Execution, Technique T1203 - Enterprise | MITRE ATT&CK®

An Adobe Flash vulnerability exploited for code execution.

mitre attackNews

Jan 25, 2026

Exploitation for Client Execution, Technique T1203 - Enterprise | MITRE ATT&CK®

An Adobe Flash vulnerability used for code execution.

mitre attackNews

Mar 18, 2026

Exploitation for Client Execution, Technique T1203 - Enterprise | MITRE ATT&CK®

An Adobe Flash vulnerability exploited for code execution.

+3 more in the timeline

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.

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Exposure mapping

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

Threat actor evidence8

Every observed campaign linking this CVE to a named adversary.

Associated malware7

Malware families riding this exploit, with evidence and IOCs.

Detection signatures2

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

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES

MITRE CVE

cve.org · CVE-2015-8651