Outage in Krystal
Kernel Security Mitigation - Dirty Frag 2.0 (ZDI-CAN-33367)
Resolved Minor
October 23, 2026 - Started 23 days ago
- Lasted 11 days
Incident Report
Summary AI Generated
Krystal identified a critical Linux kernel security vulnerability (ZDI-CAN-33367) affecting their hosting fleet and Managed VPS systems. A temporary mitigation was applied across affected systems without requiring immediate reboots, avoiding immediate service disruption. A permanent fix is pending a kernel security update, with most systems expected to support live patching and a small number requiring a reboot upon its release.
We are aware of a critical security vulnerability in the Linux Kernel (ZDI-CAN-33367 - CVE to be assigned).
Our team are currently investigating the level of exposure across all of our systems, and what impact this will have on uptime. We expect that at least some systems will need to be rebooted to apply kernel configuration changes.
We will keep you updated.
Trusted by 1,000+ teams
The Status Page Aggregator with Early Outage Detection
Stop finding out about outages from your users. Monitor 6,320+ cloud services and get alerted the second something breaks.
Latest Updates ( sorted recent to last )
INVESTIGATING
23 days ago - at 10/23/2026 03:04PM
We have applied a temporary security mitigation to our hosting fleet and Managed VPS systems without requiring immediate reboots.
We are awaiting a kernel security update for a permanent fix. Most systems are expected to support live patching once the update is available; a small number will require a reboot after the updated kernel is installed.
INVESTIGATING
23 days ago - at 10/23/2026 02:46PM
We are aware of a critical security vulnerability in the Linux Kernel (ZDI-CAN-33367 - CVE to be assigned).
Our team are currently investigating the level of exposure across all of our systems, and what impact this will have on uptime. We expect that at least some systems will need to be rebooted to apply kernel configuration changes.
We will keep you updated.
Latest Krystal outages
Biers-LON: Network-related Issues - 3 days ago
katla-lon - Ongoing Investigation - 14 days ago
uranium-lon - Ongoing Investigation - 16 days ago
C102 - Ongoing investigation - 17 days ago
Longer than usual support response times - 24 days ago
The Status Page Aggregator with Early Outage Detection
With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.
Start free trialNo credit card required · Cancel anytime · 6320 services available
Integrations with
