ACTIVELY EXPLOITED

CVE-2026-76461: Cisco Secure Email Gateway SQL Injection Vulnerability

Facts
VendorCisco
ProductSecure Email Gateway
Actively exploitedYes, according to CISA KEV
Added to CISA KEV14 Sep 2026
CISA federal deadline17 Sep 2026
Weakness (CWE)CWE-89
NVD published3 Nov 2026

Required action (CISA's text)

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.

Description (NVD)

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.

Vendor advisories

SOURCES

Other Cisco flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.