Silent Lynx Exploits WinRAR Flaw to Deploy Reverse Shell in CIS Government Attacks · 4h NGINX Fixes 5 Flaws, Including Possible RCE and a TLS Bug That May Skip Client-Cert Checks · 7h Next.js Ships Out-of-Band Patch for Two Critical RCE Flaws in Caching and SVG Processing · 7h Drupal Patches Critical Core RCE Flaw with No-Login Path via Contributed Modules · 8h Vulnerability in Sparx Systems Enterprise Architect software · 8h Curl verhelpt 'high' RCE-kwetsbaarheid gevonden door Anthropic · 8h Vulnerabilities in Slican telephone exchanges · 9h Palo Alto Networks waarschuwt voor misbruik van beveiligingslek in firewalls · 12h Cisco meldt actief misbruik van kritiek lek in Secure Email Gateway · 13h Langflow's Critical Authenticated RCE Flaw Targeted in 1,423 Honeypot Exploit Attempts · 13h Silent Lynx Exploits WinRAR Flaw to Deploy Reverse Shell in CIS Government Attacks · 4h NGINX Fixes 5 Flaws, Including Possible RCE and a TLS Bug That May Skip Client-Cert Checks · 7h Next.js Ships Out-of-Band Patch for Two Critical RCE Flaws in Caching and SVG Processing · 7h Drupal Patches Critical Core RCE Flaw with No-Login Path via Contributed Modules · 8h Vulnerability in Sparx Systems Enterprise Architect software · 8h Curl verhelpt 'high' RCE-kwetsbaarheid gevonden door Anthropic · 8h Vulnerabilities in Slican telephone exchanges · 9h Palo Alto Networks waarschuwt voor misbruik van beveiligingslek in firewalls · 12h Cisco meldt actief misbruik van kritiek lek in Secure Email Gateway · 13h Langflow's Critical Authenticated RCE Flaw Targeted in 1,423 Honeypot Exploit Attempts · 13h

ACyber Sentinel Security Assessment Team

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⚠️ Vulnerability Report

CVE-2026-76440

CRITICAL CVSS 9.8 CVSS 3.1 📌 Awaiting Analysis

CVE-2026-76440 - Cisco Secure Email Gateway Security Hardening Release

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities.

The vulnerabilities tracked by CVE-2026-76440 are related to path traversal issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-23.

Published: Sep 14, 2026 17:17

Last Modified: Sep 15, 2026 18:19