Actively exploited
Listed in CISA’s Known Exploited Vulnerabilities catalog since September 14, 2026.
CVE-2026-76461
Cisco Secure Email Gateway SQL Injection Vulnerability
Added to KEV September 14, 2026
Alert details
- Source feed
- CISA KEV
- CVE ID
- CVE-2026-76461
- CWE
- CWE-89
- Affected products
- Secure Email Gateway · Cisco Secure Email Gateway · Cisco
What happened
Cisco AsyncOS software for Cisco Secure Email Gateway (SEG) contains a SQL injection vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary commands with root privileges on the underlying operating system.
What it means for your business
Cisco Secure Email Gateway is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-76461). Cisco AsyncOS software for Cisco Secure Email Gateway (SEG) contains a SQL injection vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary commands with root privileges on the underlying operating system. CISA remediation due date: 2026-09-17. If you need help checking exposure, call (864) 335-9223.
Required action
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.
CISA due date: September 17, 2026
Sources
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