Quick answers
- Is CVE-2026-64204 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-64204 being exploited in the wild.
- How severe is CVE-2026-64204?
- High severity, with a CVSS score of 7.8, published 25 August 2026.
- Which products and versions are affected?
- NI Labview 2026 Q3 (26.3.0) and prior.
- Is there a fix for CVE-2026-64204?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-64204 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-64204?
- Check whether you run NI Labview at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
CVE-2026-64204 is an out-of-bounds write vulnerability occurring when freeing TDRefCountedPtr objects in NI LabVIEW. The vulnerability is triggered by memory corruption in the memory management code, allowing an attacker to write data beyond the bounds of allocated memory. Exploitation requires user interaction: an attacker must convince a user to open a specially crafted VI file. Once triggered, the vulnerability enables arbitrary code execution with the privileges of the user running LabVIEW, as well as information disclosure. The vulnerability affects LabVIEW 2026 Q3 (26.3.0) and prior versions. NI has released patches available through NI Package Manager, Software Downloads, and NI Update Service.
Affected products
- NI LabVIEW 2026 Q3 (26.3.0) and prior
Timeline
- 2026-08-25: disclosed
- 2026-08-24: advisory