Exploited CVEs / Adobe / CVE-2013-3346
CVE-2013-3346
Adobe Reader and Acrobat Memory Corruption Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted. Federal agencies were required to remediate by 2022-03-24 (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 Reader and Acrobat vulnerability, Critical severity, CVSS 9.8. Added to the CISA KEV catalog 2022-03-03.
Risk summary
Updated July 26, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.
Senserva AI Opinion for CVE-2013-3346
This is a memory corruption flaw in Adobe Reader and Acrobat that lets a booby-trapped PDF run arbitrary code on the machine that opens it, so anyone still running an unpatched legacy Adobe PDF client is exposed. Despite dating to 2013, CISA confirmed active exploitation and added it to the KEV catalog in 2022, and its 79 percent EPSS score reflects that working exploits circulate widely. It matters because PDFs arrive constantly through email and downloads, making user interaction trivially easy for attackers to obtain.
Do this: Inventory all Adobe Reader and Acrobat installs and update or remove any versions predating Adobe's fix for this issue.
AI-generated from public data, 2026-07-22. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2013-3346
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for CVE-2013-3346
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: 2022-03-24 (past due).
Apply updates per vendor instructions.
Official fix for CVE-2013-3346
The authoritative fix and affected-version list are published by the vendor. Find the Reader and Acrobat advisory on Adobe Security Bulletins.
Common questions about CVE-2013-3346
Is CVE-2013-3346 actively exploited?
Yes. CVE-2013-3346 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2022-03-03, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 79%.
What is the CISA deadline and required action for CVE-2013-3346?
CISA set the federal (BOD 22-01) remediation due date at 2022-03-24, which has passed; treat any unremediated system as overdue. The verbatim required action: Apply updates per vendor instructions.
What fixes CVE-2013-3346?
The authoritative fix is in the vendor advisory: see Adobe Security Bulletins for the patched Reader and Acrobat 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-2013-3346?
Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2013-3346'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.
