CVE-2026-76442: 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-2026-76442 are related to issues with improper validation of specified quantity in input that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-1284.
Affected Software
Event History
Frequently Asked Questions
What level of access would an attacker need?
The vulnerability is rated as network-accessible with low attack complexity. It requires no privileges and no user interaction.
What is the expected security impact?
The supplied vector indicates a high availability impact, with no confidentiality or integrity impact. This means the primary concern is service disruption.
Which deployments should be reviewed?
Cisco Secure Email Gateway deployments should be reviewed. The advisory description also identifies Cisco Secure Email and Web Manager as part of the engineering review associated with these hardening releases.
Is a remediation available?
Cisco states that software hardening releases address the internally discovered vulnerabilities tracked under this CVE. The provided data does not identify affected or fixed software versions.