CVE-2026-76461

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 v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-inj-2bLVGmhX	Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-76461	US Government Resource

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:o:cisco:asyncos::::::::
	cpe:2.3:o:cisco:asyncos::::::::
	cpe:2.3:o:cisco:asyncos::::::::

OR	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:-:::::::*

History

No history.

Information

Published : 2026-09-14 17:17

Updated : 2026-09-15 12:47

NVD link : CVE-2026-76461

Mitre link : CVE-2026-76461

CVE.ORG link : CVE-2026-76461

JSON object : View

Products Affected

cisco

secure_email_gateway_c395
secure_email_gateway_c695
secure_email_gateway_c195
secure_email_gateway_virtual_appliance_c600v
asyncos
secure_email_gateway_virtual_appliance_c100v
secure_email_gateway_virtual_appliance_c300v

CWE

CWE-89

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

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