Kaspersky Technical Support

KSMG tutorial videos We’re happy to share practical guidance on installing and configuring Kaspersky Secure Mail Gateway! Our colleagues have prepared two detailed step-by-step videos. You can watch them in our YouTube playlist. The videos guide you through the entire installation and configuration process, covering everything from the boot menu to additional protection options for more effective defense against email threats. #tips #ksmg

📆 Latest updates in the support lifecycle table: — Added information about Anti-Virus SDK version 8.10.3.1101-l3-windows support — Added information about Anti-Virus SDK version 8.10.2.2098-l3-windows support — Added information about Anti-Virus SDK version 8.10.1.1943-l3-windows support — Added information about Anti-Virus SDK version 8.10.1.1541-l3-linux support — Added information about Anti-Virus SDK version 8.10.1.1311-l3-linux support — Added information about Anti-Virus SDK version 8.10.0.617-l3-windows support — Added information about Anti-Virus SDK version 8.10.0.511-l3-windows support — Added information about Anti-Virus SDK version 8.9.3.1480-l3-windows support — Added information about Anti-Virus SDK version 8.9.3.1319-l3-windows support — Added information about Anti-Virus SDK version 8.9.2.824-l3-astra-linux support — Added information about Anti-Virus SDK version 8.9.2.824-l3-linux support — Added information about Anti-Virus SDK version 8.9.2.595-l3-linux support — Added information about Anti-Virus SDK version 8.5.1.102-l3-linux support #lifecycle_changes

⛔️ Within a month, support will be ended for the following applications: — Embedded Systems Security for Linux version 3.3.0.67 → June 30, 2026 — Security Center Cloud Console version 15.1.0.21087 (Network Agent) → June 18, 2026 — Industrial CyberSecurity for Networks version 3.0.1.24 → June 24, 2026 — Threat Attribution Engine version 2.2.0 → July 1, 2026 — CyberTrace version 4.3.0 → July 1, 2026 Upgrade to the latest versions for maximum protection and new features and improvements. #end_of_support

⌛️ Within a month, the following applications will be switched to limited support: — Endpoint Security for Mac version 12.1.0.553 → June 30, 2026 — Endpoint Security for Linux version 12.1.0.1508 → June 26, 2026 — Endpoint Security for Linux version 12.1.0.1274 → June 26, 2026 — Endpoint Security for Android version 10.52.1.3 → July 10, 2026 — Secure Mail Gateway version 2.1.0.7854 → July 12, 2026 — Security for Virtualization Light Agent version 6.1.11.220 → June 27, 2026 — Security for Virtualization Light Agent version 6.0.7.1402 → July 9, 2026 — Endpoint Detection and Response Optimum version 3.0 → June 26, 2026 — Container Security version 1.2 → June 17, 2026 Upgrade to the latest versions for maximum protection and new features and improvements. #limited_support

Device Control for removable drives in KESL In today's Best Practices post, we’re looking at how to manage access to USB drives, external hard drives, and other removable drives on computers protected by Kaspersky Endpoint Security for Linux. In KESL, this is handled by Device Control. It provides flexible access control. For example, you can:  ✅ Allow access for specific users or user groups (KESL 12.3+), such as domain users  ✅ Specify the ID of a trusted device and grant access to a particular employee  ✅ Grant temporary access upon a user’s request (KESL 12.4)  ✅ Allow read-only access 👉When editing policies, make sure the lock icon is closed so that the changes are applied to managed devices👈 In version 12.4, you can also configure the message shown to users when a device is blocked. To monitor removable drives, create a Device Control events report in KSC and receive it by email.  💪 Strengthen your protection by scanning removable drives after they are connected. #kesl #kscl #tips

New article in the Knowledge Base: — Errors “Connection refused”, “Application is currently unavailable”, “Security application is not running”, “Remote connection rejected” after installing Kaspersky Endpoint Security for Linux #new

Scheduled maintenance in Kaspersky cloud services in June 2026 In June 2026, we plan to perform maintenance on the KES Cloud and KSC Cloud Console infrastructure and update KES Cloud servers. Please note that during the maintenance period, KSC Cloud Console and KES Cloud services may be temporarily unavailable in all regions for short periods of time. Device protection will not be affected. Please take this into account when planning your work. The schedule is subject to change due to technical reasons. #maintenance_cloud

⌛️ Within a month, the following applications will be switched to limited support: — Endpoint Security for Mac version 12.1.0.553 → June 30, 2026 — Endpoint Security for Linux version 12.1.0.1508 → June 26, 2026 — Endpoint Security for Linux version 12.1.0.1274 → June 26, 2026 — Security Center Linux version 15.1.0.12199 → June 13, 2026 — Security Center Linux version 15.1.0.11795 → June 13, 2026 — Security for Virtualization Light Agent version 6.1.11.220 → June 27, 2026 — Endpoint Detection and Response Optimum version 3.0 → June 26, 2026 — Unified Monitoring and Analysis Platform version 3.2 → June 4, 2026 — Container Security version 1.2 → June 17, 2026 Upgrade to the latest versions for maximum protection and new features and improvements. #limited_support

⛔️ Within a month, support will be ended for the following applications: — Endpoint Security for Android version 10.48.1.39 → June 14, 2026 — Embedded Systems Security for Linux version 3.3.0.67 → June 30, 2026 — Security Center Windows version 14.2.0.26967a → June 15, 2026 — Security Center Cloud Console version 15.1.0.21087 (Network Agent) → June 18, 2026 — Industrial CyberSecurity for Networks version 3.0.1.24 → June 24, 2026 — Threat Attribution Engine version 2.2.0 → July 1, 2026 — CyberTrace version 4.3.0 → July 1, 2026 Upgrade to the latest versions for maximum protection and new features and improvements. #end_of_support

📆 Latest updates in the support lifecycle table: — Added information about Endpoint Security for Windows version 14.0.0.504 support — Added information about Endpoint Security for Android version 10.57.1.37 support — Added information about Security for Microsoft Exchange Servers version 9.7.367.0 support — Added information about Security Center Linux version 16.2.0.1023 support — Added information about Security Center Cloud Console version 16.1.0.6787 (Network Agent) support — Added information about Security Center Cloud Console version 16.0.0.347 (Network Agent) support — Added information about Security Center Cloud Console version 15.4.0.8952 (Network Agent) support — Added information about Security Center Cloud Console version 15.3.0.536 (Network Agent) support — Added information about Security Center Cloud Console version 15.1.0.21652 (Network Agent) support — Added information about Security Center Cloud Console version 15.1.0.21087 (Network Agent) support — Added information about Industrial CyberSecurity for Nodes version 4.5.0.637 support — Added information about Endpoint Detection and Response version 8.1 support — Added information about Extended Detection and Response Expert version 2.1 support — Added information about SD-WAN version 3.0 support — Added information about Anti-Virus SDK version 8.9.1.113-l3-windows support — Added information about Anti-Virus SDK version 8.9.0.99-l3-windows support — Added information about Anti-Virus SDK version 8.9.0.92-l3-windows support — Added information about Anti-Virus SDK version 8.8.1.110-l3-windows support — Added information about Anti-Virus SDK version 8.7.1.117-l3-freebsd support — Added information about Anti-Virus SDK version 8.0.2.53-l1-windows support — Added information about Anti-Virus SDK version 8.0.2.5-l1-linux support — Added information about Anti-Virus SDK version 8.0.2.5-l1-linux-arm support — Added information about Anti-Virus SDK version 8.0.2.14-l1-linux support — Added information about Anti-Virus SDK version 8.0.2.14-l1-freebsd-linux-arm support — Added information about Anti-Spam SDK version 6.0.0.313 support — Added information about Anti-Spam SDK version 6.0.0.281 support #lifecycle_changes

New articles in the Knowledge Base: — How to perform initial diagnostics in Kaspersky Unified Monitoring and Analysis Platform — Error “Administration Server uses an untrusted certificate” when signing in to Kaspersky Security Center Linux Web Console — List of private patches in Kaspersky Endpoint Security 12.1 for Windows — Applications incompatible with Kaspersky Small Office Security — Compatibility issues of Kaspersky Small Office Security on Windows 10 — How to update Web Control settings in Kaspersky Small Office Security when the timezone is changed — Error “Fatal error: Server registration failed with code '3'” when installing Kaspersky Security Center Linux #new

🔔 We announce the release of Kaspersky SD-WAN 3.0. 🔧 What's new: — Added the SYN-flood attack protection. — Implemented the capability to view session tables on the orchestrator. — BGP community is now supported. — Added Syslog encryption. — Add the filtering of fragmented packets. And many other things. #sdwan #release

Updated the collect.sh script In April, we updated the collect.sh script. Now you can run it remotely on managed devices running macOS. To do this, use the new version of collect.sh together with Network Agent for Mac version 15.3.0.23303 or later. Please use only the latest script version for collecting initial diagnostic data. Find it in this article or download it using the button below.

Update of Kaspersky Industrial CyberSecurity for Nodes 2.6 is required   Please note that version 2.6.0.785 of Kaspersky Industrial CyberSecurity for Nodes reached end of support on April 4, 2026. The preliminary end date of the database and module updates for this version is October 4, 2026. Without these updates, the application will no longer be able to detect new threats or provide effective protection against them.   ❇️ We recommend updating to the latest application versions: 4.0.0.236 and 4.5.0.637.   We’ve also published security advisories for KICS for Nodes 2.6.0.785. It is especially important to update as soon as possible if this version is used in a critical infrastructure environment.   If you need assistance or consultation regarding the KICS update, please contact us. #news #kics

Scheduled maintenance in Kaspersky cloud services in May 2026 On May 21, 2026, we plan to perform maintenance on the KES Cloud and KSC Cloud Console infrastructure. A KES Cloud server update is scheduled for May 18–22 and May 25–29, 2026. Note that during the maintenance period, KSC Cloud Console and KES Cloud services may be temporarily unavailable in all regions for short periods of time. Device protection will not be affected. Please consider this when planning your work. The schedule may be changed or extended for technical reasons. #maintenance_cloud

OpenSSL library update This week, the OpenSSL library used in our email and web traffic protection solutions will be updated to a new version. For the changes to take effect, a reboot will be required (you will see a notification in the application web interface). The reboot can be performed at any convenient time when traffic is at its lowest. Until then, the applications will continue running with the previous library version without any loss of functionality. Traffic processing will be interrupted only during the server reboot. Please restart the cluster nodes one at a time. The update will affect the following applications: — Kaspersky Secure Mail Gateway 2.0 — Kaspersky Secure Mail Gateway 2.0 MR1 — Kaspersky Secure Mail Gateway 2.1 — Kaspersky Secure Mail Gateway 2.1.1 — Kaspersky Secure Mail Gateway 3.0 — Kaspersky Web Traffic Security 6.1 — Kaspersky Web Traffic Security 6.2 — Kaspersky Security for Linux Mail Server 10 #news

As you already know, the lifecycle of Kaspersky Security for Windows Server as part of the Kaspersky Security for Business solution ended on June 30, 2025. Due to this: ➡️ On April 25, 2026, the KSWS installation package will be removed from Kaspersky Security Center Cloud Console. After this date, you will not be able to download or install KSWS from KSC CC. ➡️ On June 20, 2026, management of installed KSWS will no longer be available in KSC CC. 🚀 To retain all the familiar KSWS features, we recommend migrating to Kaspersky Endpoint Security for Windows that has been further optimized for the use in server scenarios. For more information about migration, see this article. #ksws #news

Your feedback helps us build the perfect knowledge base   Dear users, we’re continuously improving our support website, and we have an important update to share.   At the bottom of every article and support page, you will find a small yet important feedback form. By using it, you can: ✅ Let us know whether the article helped resolve your issue (“Yes” or “No”) ✅ Leave a detailed comment (what was unclear, missing, or especially helpful)   Why does this matter? We carefully review and process every feedback we receive. If you notice a typo, error, missing information, outdated instructions, or anything unclear, please let us know through this form. We take all input into account. 💭 Don’t hesitate to share your thoughts, as every message is reviewed. Together, we can make our articles clearer and more useful for everyone.   #news

We announce the release of Kaspersky Endpoint Security 14.0 for Windows (version 14.0.0.504). What's new: — Added support for Arm-based computers. — Added support for extended policy audit in KSC Web Console. — Added new telemetry events for users of Kaspersky Endpoint Detection and Response. #keswin #release

Scheduled maintenance in Kaspersky cloud services (MDR) On April 16, from 09:00 to 11:00 UTC (from 12:00 to 14:00 UTC+3), the MDR Console and the MDR features in Kaspersky Security Center will be unstable. During this period, data from the assets will be received and analyzed to identify possible threats without interruption. Please consider this when planning your work. #maintenance_cloud