BugZero | Citrix NetScaler BugID NSPOLICY-1267 - Connections might hang if the size of processing d...

Citrix NetScaler - Defect ID: NSPOLICY-1267

Connections might hang if the size of processing data is more than the configured default TCP buffer size. Workaround: Set the TCP buffer size to maximum size of data that needs to be processed.

Citrix NetScaler - Defect ID: NSPOLICY-1267

Connections might hang if the size of processing data is more than the configured default TCP buffer size. Workaround: Set the TCP buffer size to maximum size of data that needs to be processed.

Last updated on April 29th, 2026

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Overall: N/A

Severity: N/A

Community: N/A

Lifecycle: N/A

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Bug Details

Status: Known

Description

The vendor has published 1 unique mention(s) for this bug: 1. Connections might hang if the size of processing data is more than the configured default TCP buffer size. Workaround: Set the TCP buffer size to maximum size of data that needs to be processed. Modules: 1. Policies Latest urls for this bug: 1. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=41.28 2. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=47.24 3. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=52.24 4. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=58.32 5. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=61.48 6. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=64.35 7. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=67.43 8. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=71.44 9. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=76.31 10. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=79.64

Change history

2026-04-29 Added: 13.0 Build 41.28, 13.0 Build 47.24, 13.0 Build 52.24, 13.0 Build 58.32, 13.0 Build 61.48, 13.0 Build 64.35, 13.0 Build 67.43, 13.0 Build 71.44, 13.0 Build 76.31, 13.0 Build 79.64, 13.0 Build 82.45, 13.0 Build 83.29, 13.0 Build 84.11, 13.0 Build 85.19, 13.0 Build 86.17, 13.0 Build 87.9, 13.0 Build 88.16, 13.0 Build 89.7, 13.0 Build 90.12, 13.0 Build 91.13, 13.0 Build 92.31, 13.1 Build 12.51, 13.1 Build 17.42, 13.1 Build 21.50, 13.1 Build 24.38, 13.1 Build 30.52, 13.1 Build 33.54, 13.1 Build 37.38, 13.1 Build 4.44, 13.1 Build 42.47, 13.1 Build 45.64, 13.1 Build 48.47, 13.1 Build 49.15, 13.1 Build 50.23, 13.1 Build 51.15, 13.1 Build 52.19, 13.1 Build 53.24, 13.1 Build 54.29, 13.1 Build 55.34, 13.1 Build 56.18, 13.1 Build 57.26, 13.1 Build 58.32, 13.1 Build 59.22, 13.1 Build 60.32, 13.1 Build 61.25, 13.1 Build 9.60, 14.1 Build 12.35, 14.1 Build 17.38, 14.1 Build 21.57, 14.1 Build 25.56, 14.1 Build 29.72, 14.1 Build 34.42, 14.1 Build 38.53, 14.1 Build 4.42, 14.1 Build 43.56, 14.1 Build 47.48, 14.1 Build 51.80, 14.1 Build 56.74, 14.1 Build 8.50

2026-04-29 Removed: Build 13.0-41.28, Build 13.0-47.24, Build 13.0-52.24, Build 13.0-58.32, Build 13.0-61.48, Build 13.0-64.35, Build 13.0-67.43, Build 13.0-71.44, Build 13.0-76.31, Build 13.0-79.64, Build 13.0-82.45, Build 13.0-83.29, Build 13.0-84.11, Build 13.0-85.19, Build 13.0-86.17, Build 13.0-87.9, Build 13.0-88.16, Build 13.0-89.7, Build 13.0-90.12, Build 13.0-91.13, Build 13.0-92.31, Build 13.1-12.51, Build 13.1-17.42, Build 13.1-21.50, Build 13.1-24.38, Build 13.1-30.52, Build 13.1-33.54, Build 13.1-37.38, Build 13.1-4.44, Build 13.1-42.47, Build 13.1-45.64, Build 13.1-48.47, Build 13.1-49.15, Build 13.1-50.23, Build 13.1-51.15, Build 13.1-52.19, Build 13.1-53.24, Build 13.1-54.29, Build 13.1-55.34, Build 13.1-56.18, Build 13.1-57.26, Build 13.1-58.32, Build 13.1-59.22, Build 13.1-60.32, Build 13.1-61.25, Build 13.1-9.60, Build 14.1-12.35, Build 14.1-17.38, Build 14.1-21.57, Build 14.1-25.56, Build 14.1-29.72, Build 14.1-34.42, Build 14.1-38.53, Build 14.1-4.42, Build 14.1-43.56, Build 14.1-47.48, Build 14.1-51.80, Build 14.1-56.74, Build 14.1-8.50

2026-03-26 Removed: Build 13.1-61.26

2026-02-02 Removed: Build 13.1-61.23

2026-01-20 Added: Build 13.1-61.26

2025-12-09 Added: Build 13.1-61.25

2025-11-13 Added: Build 13.1-61.23

2025-11-13 Removed: Build 13.1-53.23, Build 13.1-55.29, Build 13.1-58.21, Build 13.1-59.19, Build 13.1-60.26, Build 13.1-60.29, Build 14.1-43.50, Build 14.1-47.46, Build 14.1-51.72, Build 14.1-56.71

2025-11-11 Added: Build 13.1-60.32, Build 14.1-56.74

2025-10-24 Added: Build 14.1-56.71

2025-09-29 Added: Build 13.1-60.29, Build 14.1-51.80

2025-09-11 Added: Build 13.0-41.28, Build 13.0-47.24, Build 13.0-52.24, Build 13.0-58.32, Build 13.0-61.48, Build 13.0-64.35, Build 13.0-67.43, Build 13.0-71.44, Build 13.0-76.31, Build 13.0-79.64, Build 13.0-82.45, Build 13.0-83.29, Build 13.0-84.11, Build 13.0-85.19, Build 13.0-86.17, Build 13.0-87.9, Build 13.0-88.16, Build 13.0-89.7, Build 13.0-90.12, Build 13.0-91.13, Build 13.0-92.31, Build 13.1-12.51, Build 13.1-17.42, Build 13.1-21.50, Build 13.1-24.38, Build 13.1-30.52, Build 13.1-33.54, Build 13.1-37.38, Build 13.1-4.44, Build 13.1-42.47, Build 13.1-45.64, Build 13.1-48.47, Build 13.1-49.15, Build 13.1-50.23, Build 13.1-51.15, Build 13.1-52.19, Build 13.1-53.23, Build 13.1-53.24, Build 13.1-54.29, Build 13.1-55.29, Build 13.1-55.34, Build 13.1-56.18, Build 13.1-57.26, Build 13.1-58.21, Build 13.1-58.32, Build 13.1-59.19, Build 13.1-59.22, Build 13.1-60.26, Build 13.1-9.60, Build 14.1-12.35, Build 14.1-17.38, Build 14.1-21.57, Build 14.1-25.56, Build 14.1-29.72, Build 14.1-34.42, Build 14.1-38.53, Build 14.1-4.42, Build 14.1-43.50, Build 14.1-43.56, Build 14.1-47.46, Build 14.1-47.48, Build 14.1-51.72, Build 14.1-8.50

Relevant Products

Click on a version to see all relevant bugs

Affected versions:13.0 Build 41.28, 13.0 Build 47.24, 13.0 Build 52.24, 13.0 Build 58.32, 13.0 Build 61.48, 13.0 Build 64.35, 13.0 Build 67.43, 13.0 Build 71.44, 13.0 Build 76.31, 13.0 Build 79.64, 13.0 Build 82.45, 13.0 Build 83.29, 13.0 Build 84.11, 13.0 Build 85.19, 13.0 Build 86.17, 13.0 Build 87.9, 13.0 Build 88.16, 13.0 Build 89.7, 13.0 Build 90.12, 13.0 Build 91.13, 13.0 Build 92.31, 13.1 Build 12.51, 13.1 Build 17.42, 13.1 Build 21.50, 13.1 Build 24.38, 13.1 Build 30.52, 13.1 Build 33.54, 13.1 Build 37.38, 13.1 Build 4.44, 13.1 Build 42.47, 13.1 Build 45.64, 13.1 Build 48.47, 13.1 Build 49.15, 13.1 Build 50.23, 13.1 Build 51.15, 13.1 Build 52.19, 13.1 Build 53.24, 13.1 Build 54.29, 13.1 Build 55.34, 13.1 Build 56.18, 13.1 Build 57.26, 13.1 Build 58.32, 13.1 Build 59.22, 13.1 Build 60.32, 13.1 Build 61.25, 13.1 Build 9.60, 14.1 Build 12.35, 14.1 Build 17.38, 14.1 Build 21.57, 14.1 Build 25.56, 14.1 Build 29.72, 14.1 Build 34.42, 14.1 Build 38.53, 14.1 Build 4.42, 14.1 Build 43.56, 14.1 Build 47.48, 14.1 Build 51.80, 14.1 Build 56.74, 14.1 Build 8.50

Fixed versions: No known fixed versions

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: No known fixed versions

Top Citrix NetScaler Defects

Defect ID: NSHELP-42609
The NetScaler packet engine might crash due to a defect in backend TLS 1.3 connection state handling during teardown. On NetScaler SDX platforms with multiple instances, a crash in one instance can also affect other instances sharing the same crypto hardware.
Defect ID: NSHELP-41484
NetScaler might generate the lsof_<hostname> file each time you create a support bundle. However, the system fails to remove these files immediately after the generation process is complete.
Defect ID: NSHELP-41518
Client requests might fail if HTTP/2 header values contain space characters. These spaces can trigger header frame processing errors, particularly when the client sends improperly formatted header values.
Defect ID: NSBASE-19568
When the server-side TCP window reaches a 2 GB limit, the gRPC hold logic incorrectly opens the TCP window twice for held bytes, resulting in a zero window advertisement. This issue also includes incorrect accounting of chunk header and trailer bytes before they are passed to the application handler, affecting TCP window management and data transmission.
Defect ID: NSHELP-42103
Pitboss logs might sometimes flood ns.log when the SSLVPN or IC feature is enabled and cache memory is set to 492 MB, specifically when the number of NetScaler packet engines is 4 or 5.

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Citrix NetScaler - Defect ID: NSPOLICY-1267

Connections might hang if the size of processing data is more than the configured default TCP buffer size. Workaround: Set the TCP buffer size to maximum size of data that needs to be processed.

Citrix NetScaler - Defect ID: NSPOLICY-1267

Connections might hang if the size of processing data is more than the configured default TCP buffer size. Workaround: Set the TCP buffer size to maximum size of data that needs to be processed.

Last updated on April 29th, 2026

BugZero Risk Score0.0 Coming soon

Bug Details

Top Citrix NetScaler Defects

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BugZero Risk Score
0.0 Coming soon