A vulnerability in the Advanced Malware Protection (AMP) feature of Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to… (CVE-2026-76519)
Description
A critical vulnerability exists in the Advanced Malware Protection (AMP) feature of Cisco Secure Email Gateway that allows unauthenticated remote attackers to write arbitrary files and execute commands with root privileges on the underlying operating system. This occurs due to improper handling of email attachments when the file reputation service is enabled. Exploitation requires sending a crafted email attachment to the affected device.
CVSS v3.1
Score 9.8critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-76519 is a critical vulnerability in Cisco Secure Email Gateway's AMP feature caused by improper handling of email attachments when the file reputation service is enabled. An unauthenticated remote attacker can exploit this flaw by sending a specially crafted email attachment, which allows arbitrary file write and command execution with root privileges on the underlying OS.
Potential Impact
Successful exploitation results in full system compromise with root-level command execution on the underlying operating system of the affected device. This can lead to complete control over the device and potentially the network it resides in.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider disabling the file reputation service or applying any recommended temporary mitigations from Cisco. Monitor Cisco's advisories closely for updates.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-6rc3-jwq8-jm3v
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-76519"]
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad008962cdf04f656b90d0a
Added to database: 10/14/2026, 22:56:22 UTC
Last enriched: 10/14/2026, 23:00:07 UTC
Last updated: 10/15/2026, 02:48:08 UTC
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.