Critical FortiMail Zero-Day Flaw Exploited in Attacks Allows Unauthenticated Arbitrary File Writes

2026-10-02T07:23:59Z•da850d9684ed7d6ef11681d81fa977622b89bb1beeafb4301f468be5234b6fcd
CVE-2026-104286CVE-2026-73570CVE-2026-76504CVE-2026-86950CVE-2026-88772AI securityCISA KEVCisco Catalyst SD-WAN ManagerCitrix NetScalerFortinet FortiMailOpenSSLRMM abuseSpectreWordPress malwareZimbra Collaboration Suiteactive exploitationcredential theftcryptocurrency theftdata exfiltrationphishingransomwaresupply chain securityweb shellzero-day

What happened

The feed reports active exploitation of multiple critical vulnerabilities, including FortiMail arbitrary file writes, Cisco Catalyst SD-WAN Manager authentication bypass, Citrix NetScaler pre-authentication flaws, and Zimbra command injection. It also covers ransomware activity, persistent WordPress backdoors, phishing and RMM abuse, AI platform misuse, data exposure, cryptocurrency theft, and emerging browser, CPU, and cryptographic weaknesses. Several vulnerabilities are listed as zero-days or CISA KEV entries and require urgent remediation.

Why it matters

A reviewed impact interpretation has not been published for this record.

Evidence and limitations

Source ID
the_hacker_news
Record identifier
da850d9684ed7d6ef11681d81fa977622b89bb1beeafb4301f468be5234b6fcd
Enrichment time
2026-10-02T07:23:59Z
AI-assisted enrichment
Yes

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Record · Critical FortiMail Zero-Day Flaw Exploited in Attacks Allows Unauthenticated Arbitrary File Writes · Baitaphish