Vulnerability Description
A vulnerability in the email parsing of Cisco AsyncOS Software for Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to execute arbitrary commands with root privileges on the underlying operating system. This vulnerability is due to insufficient validation in the email parsing logic. An attacker could exploit this vulnerability by sending a crafted email message that contains malicious SQL statements through an affected device. A successful exploit could allow the attacker to execute arbitrary SQL statements, leading to command execution with root privileges on the underlying operating system.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Asyncos | < 15.5.5-014 |
| Cisco | Secure Email Gateway Virtual Appliance C100V | - |
| Cisco | Secure Email Gateway Virtual Appliance C300V | - |
| Cisco | Secure Email Gateway Virtual Appliance C600V | - |
| Cisco | Secure Email Gateway C195 | - |
| Cisco | Secure Email Gateway C395 | - |
| Cisco | Secure Email Gateway C695 | - |
Related Weaknesses (CWE)
References
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/ciVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-US Government Resource
FAQ
What is CVE-2026-76461?
CVE-2026-76461 is a vulnerability with a CVSS score of 9.8 (CRITICAL). A vulnerability in the email parsing of Cisco AsyncOS Software for Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to execute arbitrary commands with root privileges on the ...
How severe is CVE-2026-76461?
CVE-2026-76461 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-76461?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Asyncos, Cisco Secure Email Gateway Virtual Appliance C100V, Cisco Secure Email Gateway Virtual Appliance C300V, Cisco Secure Email Gateway Virtual Appliance C600V, Cisco Secure Email Gateway C195.