Release Note Details
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Build Number : 2026.3.1.7
Last Updated: 02-August-2026
This release is based on 2026.3.0 which was release on ‘July 30th 2026’ . To find out all that is contained in the 2026.3 release, you can click on this link to see the full 2026.3 release notes. For more details on what else is included in this hotfix release itself, please click this link.
N-able was recently made aware of a security issue affecting all N-central instances not running 2026.3.1 (CVE-2026-18577)
It is highly recommended that all partners upgrade to this hotfix ASAP to protect themselves.
Additional Information:
Hosted N-central – Upgrade will be applied automatically
If you are on a N-central hosted instance (NCOD), you will be notified directly of the upgrade schedule for your server, and you do not need to do anything at this time.
N-central (self-hosted) – How do I upgrade to the hotfix?
Download and upgrade using the instructions provided below and on the N-able support portal. If you need assistance with the upgrade process, please contact our support team at https://me.n-able.com/s/
Upgrade Documentation: https://documentation.n-able.com/N-central/userguide/Content/ReleaseDocs/Install_Config/InstallConfig_Upgrade.htm
Upgrading from legacy versions: https://documentation.n-able.com/N-central/userguide/Content/ReleaseDocs/Release_Notes/upgrade_path.htm
How do I find out if I have been impacted ?
To detect if you have been impacted, review devices users’s documents folder for a file called ‘’svchost.exe’’, as well as look for a registered service name called ‘Cloudflared’.
Additionally, you can look at your firewall logs for any inbound connection from any of those IPS:
(Go here for the latest updates)
173[.]249[.]252[.]200
87[.]249[.]138[.]34
37[.]19[.]210[.]32
68[.]235[.]46[.]214.
If you identify any of these, contact N-able support immediately and engage your own security team.
Supported Upgrade Paths
- Upgrade directly to 2026.3.1 from
- 2025.4
- 2026.1
- 2026.2
- 2026.3
If you are on an older version, we recommend going to any of the builds above. Then upgrade to this Hotfix version ASAP. If you are unsure of what to do, you can contact support directly.
Do I need to update my agents too?
While the hotfix itself does not require the agents to be upgraded in order to protect you from CVE-2026-18577, it is still recommended that you upgrade the agent once you install the hotfix to ensure you have all the latest features and security fixes applied.
For More Information:
Support: N-able Me