Threat Landscape — Top Critical CVEs This Week

Week of April 20, 2026 — Last updated: 2026-04-20 09:44 UTC

22
CRITICAL
30
HIGH
52
CVEs
CVE ID Severity Description CVSS
CVE-2009-0238 HIGH Microsoft Office Excel 2000 SP3, 2002 SP3, 2003 SP3, and 2007 SP1; Excel Viewer 2003 Gold and SP3; Excel Viewer;… 8.8
CVE-2012-1854 HIGH Untrusted search path vulnerability in VBE6.dll in Microsoft Office 2003 SP3, 2007 SP2 and SP3, and 2010 Gold and SP1;… 7.8
CVE-2020-9715 HIGH Adobe Acrobat and Reader versions 2020.009.20074 and earlier, 2020.001.30002, 2017.011.30171 and earlier, and… 7.8
CVE-2023-21529 HIGH Microsoft Exchange Server Remote Code Execution Vulnerability 8.8
CVE-2023-33538 HIGH TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain a command injection… 8.8

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