Cisco Secure Email Gateway Injection Bug CVE-2026-76443: What Administrators Should Do First Vulnerability overview CVE-2026-76443 affects Cisco Secure Email Gateway and Cisco Secure Email and Web Manager, versions 15.5 and earlier. It is an improper neutralization vulnerability, published as part of a five-CVE hardening release in September 2026. CERT-In rated the release CRITICAL. The defect allows attacker-supplied input to reach security-sensitive processing contexts without...