R81.10.17 for Spark Firewall Appliances

Solution ID: sk183153
Technical Level: Basic

Product: Spark Firewall
Version: R81.10.X
OS: Gaia Embedded
Platform: 1500, 1570R, 1575R, 1595R, 1600, 1800, 1900, 2000
Last Modified: 2026-07-06

Solution

Check Point's latest version for all Spark Firewall deployments is R81.10.17.
For more info about all Spark Firewall R81.10.x releases, refer to the Release map article.

Introduction

Spark Firewall R81.10.17 includes major improvements to WebUI speed and responsiveness, enabling you to load pages faster. In addition, the release includes memory optimizations, specifically for the 15x0 models, as well as multiple bug fixes. Most of these capabilities are available both in the WebUI and in the Spark Firewall Management application, and affect different UI aspects such as the Overview page, objects view, reports and cluster configuration.
Click here to see the general playlist of feature videos.
This document was last updated on 6 July 2026.
Note: The latest GA Replacement Build 996004914 includes code fixes for VPN CVEs: CVE-2026-50751 and CVE-2026-50752 found in earlier Build 998004901.

What's New in R81.10.17

Security

• Spark support for DoS / Rate Limiting protocols for enhanced protection against DoS (Denial-of-Service) attacks. See the R81.10.X Spark Firewall Appliances CLI Reference Guide > Chapter "Working with SecureXL".

Networking

• Optimized configuration for 1530/1550/1570/1590 (2GB) appliances.
• Enhanced UI experience to efficiently manage dozens of VLANS, Access Rules, and network objects.
• Improved cluster usability, stability and ease of configuration.

Status of Features

This section shows the status of various features after a clean install of the R81.10.17 release or after an upgrade to the R81.10.17 release:

• Some features will be disabled by default to decrease the utilization of CPU and RAM.
• Some features will be enabled by default to increase security.
• Some features will keep their status from a previous version.

• After an upgrade: disabled
• In a cluster (after clean install and upgrade): disabled
• If managed by Spark Firewall Management: configured in the Plan object and in the Gateway object
  Note - IoT is not supported for Ruggedized appliances. | - After a clean install: enabled
• After an upgrade: keeps the previous status
• In a cluster (after clean install and upgrade): disabled
• If managed by Spark Firewall Management: configured in the Plan object and in the Gateway object
  Note - IoT is not supported for Ruggedized appliances. | - After a clean install: disabled
• After an upgrade: keeps the previous status
• In a cluster (after clean install and upgrade): disabled
• If managed by Spark Management: configured in the Plan object and in the Gateway object | Show / Hide the procedure
  On a Spark Firewall, you can control the status of this feature in WebUI:

1. Access Policy view
2. Firewall section
3. IoT page
   In the Spark Management service, you can control the status of this feature in the Plans view:
4. Edit the relevant Plan object
5. Security Software Blades category
6. IoT page
7. Enable Manage in SMP
8. Configure the required settings
9. Click Save
   In the Spark Management service, you can control the status of this feature in the Gateways view:
10. Gateways page
11. Edit the relevant Gateway object
12. Security Software Blades category
13. IoT page
14. If it is necessary to override a Plan, then click Locked to plan
15. Enable Manage in SMP
16. Configure the required settings
17. Click Save
    | | SD-WAN | - After a clean install: disabled

• After an upgrade: keeps the previous status
• In a cluster (after clean install and upgrade): disabled
• If managed by Spark Management: configured in the Plan object and in the Gateway object | - After a clean install: enabled
• After an upgrade: keeps the previous status
• In a cluster (after clean install and upgrade): disabled
• If managed by Spark Management: configured in the Plan object and in the Gateway object | - After a clean install: disabled
• After an upgrade: keeps the previous status
• In a cluster (after clean install and upgrade): disabled
• If managed by Spark Management: configured in the Plan object and in the Gateway object | Show / Hide the procedure
  On a Spark Firewall, you can control the status of this feature in WebUI:

1. Access Policy view
2. Firewall section
3. SD-WAN page
   In the Spark Management service, you can control the status of this feature in the Plans view:
4. Edit the relevant Plan object
5. Security Software Blades category
6. SD-WAN page
7. Enable Manage in SMP
8. Configure the required settings
9. Click Save
   In the Spark Management service, you can control the status of this feature in the Gateways view:
10. Gateways page
11. Edit the relevant Gateway object
12. Security Software Blades category
13. SD-WAN page
14. If it is necessary to override a Plan, then click Locked to plan
15. Enable Manage in SMP
16. Configure the required settings
17. Click Save
    | | Smart Accel | - After a clean install: enabled

• After an upgrade: keeps the previous status
• In a cluster (after clean install and upgrade): keeps the previous status | - After a clean install: enabled
• After an upgrade: keeps the previous status
• In a cluster (after clean install and upgrade): keeps the previous status | - After a clean install: disabled
• After an upgrade: keeps the previous status
• In a cluster (after clean install and upgrade): keeps the previous status | Show / Hide the procedure
  On a Spark Firewall, you can control the status of this feature in WebUI:

1. Access Policy view
2. Firewall section
3. Fast Accel page | | Hit Count | - After a clean install: disabled

• After an upgrade: disabled
• In a cluster (after clean install and upgrade): disabled | - After a clean install: disabled
• After an upgrade: disabled
• In a cluster (after clean install and upgrade): disabled | - After a clean install: disabled
• After an upgrade: disabled
• In a cluster (after clean install and upgrade): disabled | Show / Hide the procedure
  On a Spark Firewall, you can control the status of this feature in WebUI:

1. Access Policy view
2. Firewall section
3. Policy page
4. More menu
5. Hit Count Settings | | Device recognition | - After a clean install: disabled

• After an upgrade: keeps the previous status
• In a cluster (after clean install and upgrade): disabled | - After a clean install: enabled
• After an upgrade: keeps the previous status
• In a cluster (after clean install and upgrade): disabled | - After a clean install: disabled
• After an upgrade: keeps the previous status
• In a cluster (after clean install and upgrade): disabled | Show / Hide the procedure
  On a Spark Firewall, you can control the status of this feature in WebUI:

1. Device view
2. Network section
3. Local Network page
4. Edit the internal port / WiFi port
5. Advanced tab
6. Assets Management section
7. The checkbox Enable device recognition | | Remove Jitter from probing | - After a clean install: disabled

• After an upgrade: disabled
• In a cluster (after clean install and upgrade): disabled
• If managed by Spark Management: configured in the Plan object and in the Gateway object | - After a clean install: disabled
• After an upgrade: disabled
• In a cluster (after clean install and upgrade): disabled
• If managed by Spark Management: configured in the Plan object and in the Gateway object | - After a clean install: disabled
• After an upgrade: disabled
• In a cluster (after clean install and upgrade): disabled
• If managed by Spark Management: configured in the Plan object and in the Gateway object | Show / Hide the procedure
  On a Spark Firewall, you can control the status of this feature in WebUI:

1. Device view
2. Network section
3. Internet page
4. Edit the Internet connection
5. Connection Monitoring tab
6. Advanced Probing Settings section
   In the Spark Management service, you can control the status of this feature in the Plans view:
7. Edit the relevant Plan object
8. Device Settings category
9. Probing Settings page
10. Enable Manage in SMP
11. In the Quality Check Methodology section, select Best Practice
12. Click Save
    In the Spark Management service, you can control the status of this feature in the Gateways view:
13. Gateways page
14. Edit the relevant Gateway object
15. Device Settings category
16. Probing Settings page
17. If it is necessary to override a Plan, then click Locked to plan
18. Enable Manage in SMP
19. In the Quality Check Methodology section, select Best Practice
20. Click Save | | Probing | - After a clean install: enabled

• After an upgrade: keeps the previous status
• In a cluster (after clean install and upgrade): disabled | - After a clean install: enabled
• After an upgrade: keeps the previous status
• In a cluster (after clean install and upgrade): disabled | - After a clean install: enabled
• After an upgrade: keeps the previous status
• In a cluster (after clean install and upgrade): disabled | Show / Hide the procedure
  The Internet monitoring graphs are not presented.
  On a Spark Firewall, you can control the status of this feature in WebUI:

1. Device view
2. Advanced section
3. Advanced Settings page
4. Edit the parameter
   "OS advanced settings - Enable probing in cluster" and the parameter "OS advanced settings - Enable probing on the standby member" | | Where used | - After a clean install: disabled

• After an upgrade: disabled
• In a cluster (after clean install and upgrade): disabled | - After a clean install: disabled
• After an upgrade: disabled
• In a cluster (after clean install and upgrade): disabled | - After a clean install: disabled
• After an upgrade: disabled
• In a cluster (after clean install and upgrade): disabled | Show / Hide the procedure
  On a Spark Firewall, you can control the status of this feature in WebUI:

1. Device view
2. Advanced section
3. Advanced Settings page
4. Edit the parameter
   "WebUI settings and customizations - Enable where in use" |

Documentation

Release Notes

Administration Guides

Resolved Issues

Known Limitations

Downloads

Updated 6 July, 2026

| Download Package | 1500
Appliances | 1595R
Appliances | 1600 / 1800
/ 1900 / 2000

Appliances | | --- | --- | --- | --- | | R81.10.17 Build 996004914
for Local Installation | (IMG) | (IMG) | (IMG) | | R81.10.17 Build 996004914
for Central Deployment
in SmartConsole | (TAR) | (TAR) | (TAR) | | R81.10.17 Build 996004914
for SmartUpdate | (TGZ) | (TGZ) | (TGZ) |

Revision History

NOTE

This solution has been verified for the specific scenario, described by the combination of Product, Version and Symptoms. It may not work in other scenarios.