ThreatsDay Bulletin: Defender 0-Day, SonicWall Brute-Force, 17-Year-Old Excel RCE and 15 More Stories

{"priority": "HIGH", "cve": "N/A", "target": "Multiple", "threat_actor": "N/A", "patch_ready": false, "insight": "Multiple threats disclosed, including a Defender 0-Day, SonicWall brute-force attacks, and a 17-year-old Excel RCE vulnerability."}

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https://thehackernews.com/2026/04/threatsday-bulletin-17-year-old-excel.html

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https://thehackernews.com/2026/04/threatsday-bulletin-17-year-old-excel.html

id: 672
uid: UkrQJ
insdate: 2026-04-16 14:10:16
title: ThreatsDay Bulletin: Defender 0-Day, SonicWall Brute-Force, 17-Year-Old Excel RCE and 15 More Stories
additional: {"priority": "HIGH", "cve": "N/A", "target": "Multiple", "threat_actor": "N/A", "patch_ready": false, "insight": "Multiple threats disclosed, including a Defender 0-Day, SonicWall brute-force attacks, and a 17-year-old Excel RCE vulnerability."}
category: Cybersecurity
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source_url: https://thehackernews.com/2026/04/threatsday-bulletin-17-year-old-excel.html
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