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Cisco Secure Email Gateway Arbitrary File Write Vulnerability

Cisco Secure Email Gateway · CVE-2026-76519 CISCO-SA-ESA-AFW-ZQYJKJXP
0 news outlets1 CERTs and agencies0 researchers

What is it?

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.

Evidence

CERTs and agencies (1)

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
9.8
EPSS
1.6%
First seen
4 h ago
Status
confirmed

All Cisco vulnerabilities