Mmastodon TechnologyCybersecurity first seen 8 h ago, last 8 h ago, peak #3
Microsoft details Zimbra flaw allowing code execution via email
Original: Zimbra CVE-2026-73570 lets one crafted email run code. Microsoft details the Zimbra command injection attacks: web shell
Microsoft researchers have detailed attacks exploiting a Zimbra command injection vulnerability, CVE-2026-73570, in which a single crafted email is enough to run code on the mail server. The documented attacks involve deploying web shells, gaining root access, and stealing cryptographic keys. Security teams running Zimbra are being urged to patch and review their servers for signs of compromise.
Why now: A single malicious email can lead to full server compromise, making this a pressing threat for organisations running Zimbra.
Evidence
- Zimbra CVE-2026-73570 lets one crafted email run code. Microsoft details the Zimbra command injection attacks: web shells, root access, and key theft. # Zimbra # CVE202673570 # CommandInjection # WebShell # EmailSecurity # MailServer # Microsoft # CyberSecurity https://… · DailyCyberSecurity@infosec.exchange · 1
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