Exploit / PoCcritical
Adobe Reader Zero-Day Exploited via Malicious PDFs Since December 2025
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2026-34621 | Actively Exploited Prototype Pollution RCE in Adobe Acrobat and Reader | 8.6 | 7% | KEV | KEV |
From the original article
2 min read at thehackernews.com
Ravie Lakshmanan Apr 09, 2026 Vulnerability / Threat Intelligence Threat actors have been exploiting a previously unknown zero-day vulnerability in Adobe Reader using maliciously crafted PDF documents since at least December 2025. The finding, detailed by EXPMON's Haifei Li, has been described as a highly-sophisticated PDF exploit. The artifact ("Invoice540.
By @TheHackersNews · thehackernews.com
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