EUVD-2026-65591
GHSA-fv2w-vfhx-4hvc
Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Local vector because the malicious VI must be opened on the victim's system; no privileges required but user interaction is mandatory; all three impact dimensions are high given RCE and information disclosure potential.
Primary rating from Vendor (NI).
CVSS VectorVendor: NI
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
4DescriptionCVE.org
There is a memory corruption vulnerability recently discovered in NI LabVIEW that may result in information disclosure or arbitrary code execution. Successful exploitation requires an attacker to get a user to open a specially crafted VI. This vulnerability affects NI LabVIEW 2026 Q3 (26.3.0) and prior versions.
AnalysisAI
Memory corruption in NI LabVIEW 2026 Q3 (26.3.0) and all prior versions enables information disclosure or arbitrary code execution when a user opens a specially crafted Virtual Instrument (VI) file. Rooted in CWE-125 (Out-of-bounds Read), the parser reads beyond allocated buffer boundaries, which can expose adjacent memory or - under favorable heap conditions - enable full code execution. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires exactly one precondition: a LabVIEW user must open a specially crafted VI file using an affected version (26.3.0 or prior). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:L/AC:L/AT:N/PR:N/UI:P) scores 8.5, reflecting high impact across confidentiality, integrity, and availability of the vulnerable system with no scope change to subsequent systems. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Consult the NI security advisory at https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/2026/memory-corruption-vulnerabilities-ni-labview.html for the specific patched release version - the input data confirms 26.3.0 as the boundary of the affected range but does not explicitly name a fixed version number, so the advisory must be consulted to identify the correct upgrade target. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all LabVIEW 26.3.0 and earlier deployments, immediately restrict VI file-open operations to internally-controlled sources only, and alert users to avoid opening VI files from external or untrusted origins. …
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Memory corruption in NI LabVIEW 2026 Q3 (26.3.0) and all prior versions enables information disclosure or arbitrary code
Memory corruption in NI LabVIEW 2026 Q3 (26.3.0) and all prior versions enables information disclosure or arbitrary code
Memory corruption in NI LabVIEW (all versions through 26.3.0) enables information disclosure or arbitrary code execution
Memory corruption in NI LabVIEW 26.3.0 and all prior versions enables information disclosure or arbitrary code execution
Memory corruption in NI LabVIEW 2026 Q3 (26.3.0) and all prior versions enables information disclosure or arbitrary code
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Same weakness CWE-125 – Out-of-bounds Read
View allSame technique Information Disclosure
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External POC / Exploit Code
Leaving vuln.today