OutageDB

Critical incident

Guardsquare: Preventive measures against (CVE-2026-109618 & CVE-2026-109619)

Oct 21, 2026, 14:06 UTC
started
18:01 UTC
resolved
3 h 55 min
duration

Current status of Guardsquare: Operational — live Guardsquare status

Timeline

  1. Oct 21, 2026, 14:06 UTC
    investigating
    We have temporarily taken our platform offline to safely deploy critical security patches addressing CVE-2026-109618 and CVE-2026-109619.
  2. Oct 21, 2026, 18:01 UTC
    resolved
    We've successfully applied all necessary patches to our infrastructure.
  3. Oct 23, 2026, 11:58 UTC
    resolved
    **Official Security Advisory** Upon learning of the vulnerabilities we immediately identified the external facing services within our infrastructure that were potentially vulnerable to CVE-2026-109618 & CVE-2026-109619. As a precaution, we temporarily took the affected services offline until the official patches were available, applied them immediately, and restored operations under continuous security monitoring. We have completed a full impact analysis across our infrastructure. We found no evidence of compromise or unauthorized access related to these vulnerabilities. There's no customer impact and no action required on your side.

Updates as published by Guardsquare.

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This was part of a wider event: 109 services reported incidents within the hour.

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