Advisory Details

April 15th, 2026

NI LabVIEW LVCLASS File Parsing Memory Corruption Remote Code Execution Vulnerability

ZDI-26-291
ZDI-CAN-28516

CVE ID CVE-2026-32861
CVSS SCORE 7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS NI
AFFECTED PRODUCTS LabVIEW
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of NI LabVIEW. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of LVCLASS files. The issue results from the lack of proper validation of user-supplied data, which can result in a memory corruption condition. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS NI has issued an update to correct this vulnerability. More details can be found at:
https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/2026/lv-class-file-parsing-memory-corruption-vulnerability-in-ni-labview.html
DISCLOSURE TIMELINE
  • 2026-01-20 - Vulnerability reported to vendor
  • 2026-04-15 - Coordinated public release of advisory
  • 2026-04-15 - Advisory Updated
CREDIT Rocco Calvi (@TecR0c) with TecSecurity
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