Cisco Email Security Appliance (ESA) — Vulnerabilities & Security Advisories 31

This page aggregates known vulnerabilities for the Cisco Email Security Appliance, a network security appliance focused on filtering email traffic, categorized under product-specific weakness collections. It compiles a comprehensive list of security flaws, ranging from cross-site scripting and buffer overflows to privilege escalation and remote code execution issues, covering reports published from 2013 to the present. Readers can utilize this resource to track specific vendor advisories and monitor how Cisco addresses security concerns within the ESA firmware and software ecosystem. Additionally, users can gain a deeper understanding of the underlying weakness classes affecting this infrastructure, such as improper input validation or insecure default configurations. The page also serves as a historical reference for a product’s vulnerability trajectory, allowing security analysts and administrators to look up past incidents and assess the cumulative risk profile over time. By centralizing this data, the page facilitates efficient risk management and helps teams prioritize patching efforts based on the severity and prevalence of disclosed issues. This aggregation supports informed decision-making for those responsible for maintaining the integrity and availability of email security gateways, ensuring that legacy and current versions are evaluated against the latest threat intelligence without relying on scattered third-party sources.