⚠ Exploited in the wild. CISA added CVE-2026-76519 to its Known Exploited Vulnerabilities catalog on Oct 14, 2026, with a federal patch deadline of Oct 17, 2026 — meaning attackers are actively using it. If you run the affected software, patch it immediately.
A vulnerability in the Advanced Malware Protection (AMP) feature of Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to write arbitrary files on the underlying operating system.
This vulnerability is due to improper handling of email attachments when the file reputation service is enabled. An attacker could exploit this vulnerability by sending an email that contains a crafted attachment through an affected device. A successful exploit could allow the attacker to write arbitrary files and execute commands with root privileges on the underlying operating system.
Yes — CISA lists CVE-2026-76519 in its Known Exploited Vulnerabilities (KEV) catalog, so it is confirmed exploited in the wild. Patch it as a priority.
Apply the vendor’s patch for the affected software. The federal patch deadline was Oct 17, 2026. Then check whether your personal data was exposed in any related breach.
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