CVE-2026-76461 Details
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Sep 14, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-76461 | CISA-ADP | US Government Resource |
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-inj-2bLVGmhX | [email protected] | Vendor Advisory |
This CVE is in CISA's Known Exploited Vulnerabilities Catalog
Reference CISA's BOD 22-01 and Known Exploited Vulnerabilities Catalog for further guidance and requirements.
| Vulnerability Name | Date Added | Due Date | Required Action |
|---|---|---|---|
| Cisco Secure Email Gateway SQL Injection Vulnerability | Sep 14, 2026 | Sep 17, 2026 | Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-89 | Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| cisco asyncos | < 15.5.5-014 >= 16.0, < 16.0.4-302 >= 16.5, < 16.5.0-780 |
CPE
Remediation
| |
| cisco secure email gateway virtual appliance c100v | All versions |
CPE
Remediation
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| cisco secure email gateway virtual appliance c300v | All versions |
CPE
Remediation
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| cisco secure email gateway virtual appliance c600v | All versions |
CPE
Remediation
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| cisco secure email gateway c195 | All versions |
CPE
Remediation
| |
| cisco secure email gateway c395 | All versions |
CPE
Remediation
| |
| cisco secure email gateway c695 | All versions |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 15, 2026 | Initial Analysis | [email protected] |
| Sep 15, 2026 | CVE Modified | CISA-ADP |
| Sep 14, 2026 | CVE CISA KEV Update | Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government |
| Sep 14, 2026 | CVE Modified | CISA-ADP |
| Sep 14, 2026 | New CVE Received | [email protected] |
| Sep 14, 2026 | CVE Modified | CISA-ADP |