Overview
This document outlines the fixes included in the HySecure Gateway Security Hotfix OS19 and provides instructions for applying it to the HySecure Gateway.
Released on: June 25, 2026
Applicable On
This is a cumulative security hotfix that includes fixes from security hotfix OS15 onwards and requires security hotfix SF14 to be installed prior to installation.
This hotfix includes fixes for both zero-day vulnerabilities:
OS16 (Copy Fail - CVE-2026-31431) and OS17 (Dirty Frag - CVE-2026-43284, CVE-2026-43500).
It can be applied only on the following HySecure Gateway versions, where SF14 is already installed:
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HySecure Gateway 7.0 Build 648
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HySecure Gateway 7.0 Hotfix 1 Build 651
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HySecure Gateway 7.1 Build 157
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HySecure Gateway 7.1 Service Pack 1 Build 25
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HySecure Gateway 7.1 Service Pack 2 Build 4
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HySecure Gateway 7.2 Build 147
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HySecure Gateway 7.2 Service Pack 1 Build 8
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HySecure Gateway 7.3 Build 96
Note
This hotfix includes package updates and fixes through June 15, 2026.
Important
- Downtime is required while applying this Hotfix.
- NTP Server must be configured, and NTP services must be running on all nodes.
- Ensure that HySecure Services and Syncing services are running on all nodes in the HySecure management console dashboard.
- The license should be active on the gateway before applying the hotfix.
- For End-of-Life details, refer to Accops Product Lifecycle.
How to Get the Hotfix
Please visit the link below to download the hotfix:
Security Hotfix - AH_OL9_CM_OS19_7.0_SF14_20260617
MD5 checksum: f6113c0576e70382922a402d17d71fb3
How to Apply the Hotfix
Please refer to Appendix A: Upgrading HySecure Cluster for the procedure to upgrade the HySecure Cluster Gateway.