CVE-2012-0754: Adobe Flash Player memory corruption via out-of-bounds write

Automated analysis

Generated by VULONE's analysis model from the NVD record, CISA KEV and EPSS data on 17 September 2026. Confidence: high.

critical priorityThe flaw is in CISA KEV with confirmed exploitation, has an EPSS score above 0.92, and enables remote code execution on an end-of-life product.

What it is

Adobe Flash Player contains an out-of-bounds write (CWE-787) that allows attackers to execute arbitrary code or cause a denial of service through memory corruption. The flaw affects Flash Player on Windows, Mac OS X, Linux, Solaris, and Android prior to the fixed builds listed by Adobe. Because Flash Player is end-of-life, any remaining deployment is exposed to a high-impact code execution bug.

Impact

An attacker can corrupt memory to run arbitrary code in the context of the Flash Player process or crash it, giving code execution or denial of service. Successful exploitation can lead to full compromise of the user's session on the affected host.

Attack surface

The vulnerability is network-reachable (AV:N) with no privileges or user interaction required per the CVSS vector, meaning it can be triggered by delivering crafted content to the Flash Player. The description does not specify the exact vector, but Flash content is typically reached through a browser or embedded player.

Exploitation

CVE-2012-0754 is listed in CISA's Known Exploited Vulnerabilities catalog (added 2022-06-08) and has an EPSS 30-day probability of 0.9203 (99.8th percentile), indicating observed exploitation and very high likelihood of attempted exploitation. No ransomware campaign use is documented.

What to do

• Apply the vendor patch referenced in Adobe security bulletin APSB12-03 or upgrade to the fixed Flash Player versions listed in the advisory.
• If patching is not possible, remove or disconnect end-of-life Flash Player installations as directed by CISA's required action.
• Disable or uninstall Flash Player browser plug-ins and block Flash content at the browser or proxy level.
• Restrict network access to systems that still run Flash Player and monitor for unexpected process crashes or code execution.

Detection

• Hunt for Flash Player processes (e.g., FlashPlayerPlugin, npapi flash) spawning unexpected child processes or making anomalous network connections.
• Monitor for crashes or memory corruption indicators in Flash Player logs and endpoint telemetry.
• Search for known exploit delivery patterns such as malicious SWF files or Flash content served from untrusted sites.
• Use EDR to alert on suspicious behavior from hosts still running end-of-life Flash Player.

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