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Qualys Outage History

Every past Qualys outage tracked by IsDown, with detection times, duration, and resolution details.

There were 1051 Qualys outages since December 2019. The 204 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Minor April 7, 2026

April 2026: US GOV Platform 1: VMDR Host Asset API and WAS Reporting Impacted (IM-12572)

Detected Apr 7, 2026 11:18 AM EDT · Resolved Apr 7, 2026 2:16 PM EDT · Duration about 3 hours

The Qualys US GOV Platform 1 experienced performance issues affecting the Host Asset API in the Vulnerability Management module and the ability to launch on-demand HTML/PDF reports in the Web Application Scanning module. The incident lasted 3 hours and impacted both VMDR and WAS components. A fix was implemented and monitored before the incident was fully resolved.

Minor April 7, 2026

April 2026: EU Platforms 2: PA/SCA Agent Backlog (IM-12571)

Detected Apr 7, 2026 10:19 AM EDT · Resolved Apr 8, 2026 3:42 AM EDT · Duration about 17 hours

Qualys experienced PA/SCA agent backlogs on EU Platform 2, affecting Security Configuration Assessment (SCA) and Policy Audit/Policy Compliance (PA/PC) services. The incident lasted 17.4 hours before being resolved. The issue was identified and a fix was implemented to restore normal agent processing.

Minor April 3, 2026

April 2026: US Platform 2: VM Scan Processing Delays (IM-12565)

Detected Apr 3, 2026 10:56 AM EDT · Resolved Apr 6, 2026 12:57 AM EDT · Duration 3 days

Qualys US Platform 2 experienced delays in processing VM scan events for 62 hours, affecting both Scanner and Cloud Agent components. The Cloud Operations team implemented corrective actions that steadily reduced the processing lag, with new scans returning to normal processing speeds. The incident was fully resolved after continuous monitoring confirmed system stability.

Minor April 2, 2026

April 2026: US Platform 3: Lag observed on vm-scan-events (IM-12567)

Detected Apr 2, 2026 10:10 PM EDT · Resolved Apr 3, 2026 10:25 AM EDT · Duration about 12 hours

Qualys US Platform 3 experienced a lag issue where VM scan events were completing but not being processed, affecting the Vulnerability Management service for 12.2 hours. The Cloud Operations team investigated the issue, implemented a fix, and monitored the results before confirming resolution.

Minor April 2, 2026

April 2026: UK Platform 1: Patch Management Deployment Jobs Stuck in Queued State (IM-12566)

Detected Apr 2, 2026 12:29 PM EDT · Resolved Apr 2, 2026 1:00 PM EDT · Duration 31 minutes

Qualys UK Platform 1 experienced an issue where Patch Management deployment jobs could be created but remained stuck in a queued state, with newly created jobs not appearing in the UI or taking effect in the application. The incident affected the Patch Management component and lasted 31 minutes before a fix was implemented and the service was restored.

Major April 2, 2026

April 2026: US Platform 2: VM Scan Processing Delays (IM-12565)

Detected Apr 2, 2026 10:01 AM EDT · Resolved Apr 3, 2026 10:00 AM EDT · Duration about 24 hours

Qualys US Platform 2 experienced a major incident causing delays in VM scan event processing, affecting both Scanner and Cloud Agent components for 24 hours. The issue was identified and a fix was implemented, followed by monitoring to ensure stability. The incident was fully resolved after the fix proved successful.

Major April 1, 2026

April 2026: All Shared Platforms: AWS Connector Validation failures [IM-12562]

Detected Apr 1, 2026 2:55 AM EDT · Resolved Apr 5, 2026 11:37 PM EDT · Duration 5 days

Qualys experienced AWS Connector validation failures lasting 116.7 hours, where connectors would enter an ERROR state and stop processing all regions when the AWS Middle East (Bahrain) me-south-1 region was enabled, causing complete loss of security posture visibility across all AWS regions. Users were required to temporarily disable the Bahrain region in their connector settings to restore functionality for other regions. The issue was identified, fixed, and resolved, with users advised to rerun any connectors that remained in error or queued states.

Major April 1, 2026

April 2026: US Platform 2: Qualys UI Login Impacted [IM-12561]

Detected Apr 1, 2026 12:22 AM EDT · Resolved Apr 1, 2026 2:13 AM EDT · Duration about 2 hours

Qualys US Platform 2 experienced a major UI login issue that prevented users from accessing the platform and all associated security services including vulnerability management, asset management, and compliance tools. The Qualys Cloud Platform Operations team investigated and implemented a fix within approximately 1.9 hours. The incident was resolved after a brief monitoring period to ensure the fix was stable.

Major March 31, 2026

March 2026: US Platform 2: Qualys API and UI Login Impacted [IM-12559]

Detected Mar 31, 2026 6:28 AM EDT · Resolved Mar 31, 2026 8:45 AM EDT · Duration about 2 hours

Qualys US Platform 2 experienced a major outage affecting API functionality and UI login capabilities across all services including VMDR, vulnerability management, cloud security, and compliance tools. The incident impacted the entire platform ecosystem, preventing users from accessing critical security and asset management functions. The issue was resolved after 2.3 hours following implementation of a fix and monitoring period.

Minor March 24, 2026

March 2026: US Platform 1: Delay on Events in FIM UI (IM-12555)

Detected Mar 24, 2026 2:38 PM EDT · Resolved Mar 25, 2026 6:15 AM EDT · Duration about 16 hours

The Qualys US Platform 1 experienced a lag in the File Integrity Monitoring (FIM) module that caused delays in events appearing in the FIM user interface. The incident affected the FIM component and lasted 10 minutes while operations teams investigated the topic-related performance issue.