Description
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.
Published: 2026-10-14
Score: 9.8 Critical
EPSS: 1.7% Low
KEV: Yes
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 15 Oct 2026 14:00:00 +0000

Type Values Removed Values Added
First Time appeared Cisco
Cisco asyncos
Cisco secure Email Gateway C195
Cisco secure Email Gateway C395
Cisco secure Email Gateway C695
Cisco secure Email Gateway Virtual Appliance C100v
Cisco secure Email Gateway Virtual Appliance C300v
Cisco secure Email Gateway Virtual Appliance C600v
CPEs cpe:2.3:a:cisco:secure_email_gateway_virtual_appliance_c100v:-:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_email_gateway_virtual_appliance_c300v:-:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_email_gateway_virtual_appliance_c600v:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:secure_email_gateway_c195:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:secure_email_gateway_c395:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:secure_email_gateway_c695:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*
Vendors & Products Cisco
Cisco asyncos
Cisco secure Email Gateway C195
Cisco secure Email Gateway C395
Cisco secure Email Gateway C695
Cisco secure Email Gateway Virtual Appliance C100v
Cisco secure Email Gateway Virtual Appliance C300v
Cisco secure Email Gateway Virtual Appliance C600v

Wed, 14 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 14 Oct 2026 19:45:00 +0000

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2026-10-14T00:00:00+00:00', 'dueDate': '2026-10-17T00:00:00+00:00'}


Wed, 14 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Cisco Secure Email Gateway Arbitrary File Write Vulnerability
Weaknesses CWE-23
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Subscriptions

Cisco Asyncos Secure Email Gateway C195 Secure Email Gateway C395 Secure Email Gateway C695 Secure Email Gateway Virtual Appliance C100v Secure Email Gateway Virtual Appliance C300v Secure Email Gateway Virtual Appliance C600v
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-10-15T03:56:57.762Z

Reserved: 2026-08-19T12:02:03.642Z

Link: CVE-2026-76519

cve-icon Vulnrichment

Updated: 2026-10-14T16:40:43.762Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-14T17:19:10.747

Modified: 2026-10-15T13:47:19.470

Link: CVE-2026-76519

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-15T00:30:07Z

Weaknesses
  • CWE-23

    Relative Path Traversal