Exploited CVEs / Adobe / CVE-2015-5122
CVE-2015-5122
Adobe Flash Player Use-After-Free Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted. Federal agencies were required to remediate by 2022-05-04 (that deadline has passed); treat that date as the outer bound for your own environment. The fix is in the vendor advisory: Adobe Security Bulletins, linked below.
Actively exploited Adobe Flash Player vulnerability, Critical severity, CVSS 9.8. Added to the CISA KEV catalog 2022-04-13.
Risk summary
Updated July 26, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.
Senserva AI Opinion for CVE-2015-5122
This is a use-after-free bug in the DisplayObject class of Flash Player's ActionScript 3 engine that surfaced from the 2015 Hacking Team leak, and CISA confirmed it as actively exploited when they added it to the KEV in 2022. With a 94 percent EPSS score and Severity Critical (CVSS 9.8), any system still running Flash Player is exposed to remote code execution. Flash reached end of life at the end of 2020, so no vendor patch will ever address a remaining installation.
Do this: Locate and uninstall every remaining Adobe Flash Player instance across endpoints and browsers, since Flash is end of life and cannot be patched.
AI-generated from public data, 2026-07-22. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2015-5122
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for CVE-2015-5122
Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.
CISA required action
Federal (BOD 22-01) remediation due date: 2022-05-04 (past due).
The impacted product is end-of-life and should be disconnected if still in use.
Official fix for CVE-2015-5122
The authoritative fix and affected-version list are published by the vendor. Find the Flash Player advisory on Adobe Security Bulletins.
Common questions about CVE-2015-5122
Is CVE-2015-5122 actively exploited?
Yes. CVE-2015-5122 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2022-04-13, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 94%.
What is the CISA deadline and required action for CVE-2015-5122?
CISA set the federal (BOD 22-01) remediation due date at 2022-05-04, which has passed; treat any unremediated system as overdue. The verbatim required action: The impacted product is end-of-life and should be disconnected if still in use.
What fixes CVE-2015-5122?
The authoritative fix is in the vendor advisory: see Adobe Security Bulletins for the patched Flash Player versions and any workarounds. KEV listing makes this a fix-first item: patch it ahead of higher-CVSS issues nobody is exploiting.
Can I ask my own AI about CVE-2015-5122?
Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2015-5122's key facts: severity, CVSS, EPSS, the KEV date, the CISA due date, and the required action. Copy it into Claude, ChatGPT, or Copilot; the data is refreshed twice a day (5 AM and 3 PM US Central).
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Authoritative references
Every actively exploited CVE, searchable with due dates and CSV export: the exploited-CVE tracker. The newest additions: exploited this week.
