CVE-2018-0140: A vulnerability in the spam quarantine of Cisco Email Security Appliance and Cisco Content Security Managem...

Security readout for executives and security teams

This issue affects Cisco email security quarantine systems. A logged-in user could view or download other employees' quarantined messages by altering browser-supplied information. The business risk is exposure of sensitive email content, not system takeover. Public sources provided do not show active exploitation or a CVSS score. Exposure is likely limited to organizations running affected Cisco Email Security Appliance or Content Security Management Appliance spam quarantine features with authenticated user access. Internet reachability is not established in the supplied sources. Prioritize if Cisco ESA or SMA handles sensitive business mail or broad employee quarantine access. The issue is privacy and data exposure, not infrastructure compromise, but email content leakage can create regulatory and incident-response obligations. Mitigation focus: Inventory Cisco ESA and SMA deployments using spam quarantine features.; Review Cisco advisory cisco-sa-20180207-esacsm for affected and fixed release guidance.; Apply vendor-recommended remediation after confirming the appliance version is affected..

Prepared

Jun 7, 2026, 20:58 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.