The following items are notable issues fixed between the release of NI-DCPower 2026 Q2 and NI-DCPower 2026 Q3, including additional patches and service packs. If you have an issue ID, you can search this list to validate that the issue has been fixed. This is not an exhaustive list of issues fixed in the current version of NI-DCPower.
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Bug Number |
Legacy ID |
Description |
Details |
|---|---|---|---|
| 3815185 |
Disconnecting the Inhibit pin on the PXIe-4051 does not disable the input when Output Shorted is True and when Output Function is DC Voltage or Constant ResistanceWhen the Output Shorted property is True, disconnecting the Inhibit pin on the PXIe-4051 does not disable the input when Output Function is set to DC Voltage or Constant Resistance, and it might not behave correctly when Output Function is Constant Power.
Workaround: Avoid using Output Shorted on PXIe-4051 if the Inhibit pin is needed to work while using the affected output functions. Manually configure the PXIe-4051 to simulate the short circuit using the following configurations instead:
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Reported Version: NI-DCPower: 2025 Q2 | NI-DCPower: 2025 Q3 | NI-DCPower: 2025 Q3 Patch 2 | NI-DCPower: 2025 Q4 | NI-DCPower: 2025 Q4 Patch 1 | NI-DCPower: 2026 Q1 | NI-DCPower: 2026 Q2 Resolved Version: NI-DCPower: 2026 Q3 Added: Apr 15, 2026 |
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| 3721419 |
Unclosed NI-DCPower session on certain devices cannot be reset, thus preventing a new session to be initialized with the deviceOn PXIe-4051, PXIe-4147, PXIe-4150, PXIe-4151, PXIe-4162, PXIe-4163, PXIe-4190 and all their variants, if an NI-DCPower session is left open after a measurement is performed (for example, after an application crash or an aborted test sequence) and is not properly closed, subsequent attempts to initialize a new session on the instrument will fail with an error. Performing a device reset from NI Measurement & Automation Explorer does not resolve the issue.
Workaround: Reboot the system.
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Reported Version: NI-DCPower: 2023 Q4 Resolved Version: NI-DCPower: 2026 Q3 Added: N/A |
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| 3877033 |
PXIe-4190 LCR Impedance Autorange fails with external digital edge source triggersWhen using the PXIe-4190 with Instrument Mode set to LCR and LCR Impedance Autorange set to On, if the instrument is configured to use a Digital Edge Source Trigger, the instrument will fail to complete a measurement, and calling Measure, Fetch, or Wait For Event will cause a timeout error. Workaround: There is currently no known workaround for this issue. |
Reported Version: NI-DCPower: 2025 Q4 | NI-DCPower: 2026 Q1 Resolved Version: NI-DCPower: 2026 Q3 Added: N/A |
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| 3842206 |
In a session initialized with "niDCPower Initialize With Channels", calling "niDCPower Self Test" or "niDCPower Cal Self Calibrate" might cause Output Enabled to be False on certain devicesAfter initializing an NI-DCPower session on the PXIe-4051, PXIe-4147, PXIe-4150, PXIe-4151, PXIe-4162, PXIe-4163, PXIe-4190 or their variants and calling niDCPower Self Test or niDCPower Cal Self Calibrate on it, the Output Enabled attribute might return False instead of being reset to its default value of True as if niDCPower Reset With Channels is called.
Workaround:
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Reported Version: NI-DCPower: 2026 Q2 Resolved Version: NI-DCPower: 2026 Q3 Added: N/A |
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Vulnerability CVE-2026-8035CVE-2026-8035 may allow a local authenticated user to cause a denial of service by triggering a crash due to a NULL pointer dereference.
Workaround: Update to NI-DCPower 2026 Q3 (Download page: https://www.ni.com/en/support/downloads/drivers/download.ni-dcpower.html)
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Reported Version: NI-DCPower: 19.1 | NI-DCPower: 20.1 | NI-DCPower: 20.5 | NI-DCPower: 20.6 | NI-DCPower: 20.7 | NI-DCPower: 21.0 | NI-DCPower: 21.3 | NI-DCPower: 21.3.1 | NI-DCPower: 21.3.2 | NI-DCPower: 21.3.3 | NI-DCPower: 21.5 | NI-DCPower: 21.8 | NI-DCPower: 2022 Q3 Resolved Version: NI-DCPower: 2026 Q3 Added: N/A |
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Vulnerability CVE-2026-8036CVE-2026-8036 may allow a local authenticated user to access arbitrary system memory, potentially leading to privilege escalation. Workaround: Update to NI-DCPower 2026 Q3 (Download page: https://www.ni.com/en/support/downloads/drivers/download.ni-dcpower.html)
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Reported Version: NI-DCPower: 19.1 | NI-DCPower: 20.1 | NI-DCPower: 20.5 | NI-DCPower: 20.6 | NI-DCPower: 20.7 | NI-DCPower: 21.0 | NI-DCPower: 21.3 | NI-DCPower: 21.3.1 | NI-DCPower: 21.3.2 | NI-DCPower: 21.3.3 | NI-DCPower: 21.5 | NI-DCPower: 21.8 | NI-DCPower: 2022 Q3 Resolved Version: NI-DCPower: 2026 Q3 Added: N/A |
Installing some patches may require certain additional steps or considerations. Please refer to the following table for more information about patches for this release.
These patches currently do not have any special instructions.