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Prostack Outage History

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

There were 8 Prostack outages since February 2026. The 8 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Minor May 20, 2026

May 2026: cPanel SEC-73728 & SEC-73755 patches

Detected May 20, 2026 5:58 AM EDT · Resolved May 20, 2026 6:44 AM EDT · Duration about 1 hour

Minor May 12, 2026

May 2026: cPanel CVEs 13-14th May 2026

Detected May 12, 2026 4:49 PM EDT · Resolved May 14, 2026 2:27 PM EDT · Duration 2 days

Minor May 8, 2026

May 2026: Linux vulnerability: "DirtyFrag"

Detected May 8, 2026 7:42 AM EDT · Resolved May 11, 2026 7:06 AM EDT · Duration 3 days

Minor May 8, 2026

May 2026: cPanel vulnerability CVE-2026-29201, CVE-2026-29202, CVE-2026-29203

Detected May 8, 2026 4:10 AM EDT · Resolved May 11, 2026 7:06 AM EDT · Duration 3 days

Minor May 1, 2026

May 2026: CVE-2026-31431 Copy Fail: Mitigation and Patches

Detected May 1, 2026 4:45 AM EDT · Resolved May 11, 2026 7:06 AM EDT · Duration 10 days

Minor April 28, 2026

April 2026: cPanel Zero Day - Restricted control panel access precaution

Detected Apr 28, 2026 4:43 PM EDT · Resolved Apr 29, 2026 5:15 AM EDT · Duration about 13 hours

Minor March 18, 2026

March 2026: HV20 incident

Detected Mar 18, 2026 6:16 AM EDT · Resolved Mar 18, 2026 10:32 PM EDT · Duration about 16 hours

Minor February 24, 2026

February 2026: HV05 downtime

Detected Feb 24, 2026 2:47 AM EST · Resolved Feb 24, 2026 3:18 AM EST · Duration 31 minutes