CVE-2026-18445

Integer Overflow Vulnerability Resulting in an Out of Bounds Write in NI LabVIEW

Published Aug 25, 2026 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Description
There is an integer overflow vulnerability resulting in an out-of-bounds write recently discovered in NI LabVIEW.  This may result in information disclosure or arbitrary code execution.  Successful exploitation requires an attacker to get a user to open a specially crafted VI file.  This vulnerability affects NI LabVIEW 2026 Q3 and prior versions.

Analysis

AI-generated

Technical impact

An integer overflow flaw in NI LabVIEW allows an out‑of‑bounds write when processing a specially crafted VI file. Because the memory write can corrupt adjacent memory, the vulnerability may lead to information disclosure or arbitrary code execution, as indicated by CWE‑190.

Affected Systems

NI LabVIEW 2026 Q3 and all earlier releases are affected by this integer‑overflow defect, as specified by the vendor and documented in the advisory. Affected users must identify the LabVIEW edition and build they are running and apply the corresponding update.

Risk and Exploitability

With a CVSS score of 6.9, the flaw presents a moderate impact. EPSS data is not available and the vulnerability is not listed in CISA’s KEV catalog, suggesting that it has not yet been commonly exploited in the wild. Based on the description, it is inferred that the attacker must persuade a user to open a malicious VI file, indicating a local or social‑engineering attack vector rather than a remote network exploitation.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update NI LabVIEW to the latest released version that contains the integer‑overflow fix; follow the instructions in the NI security advisory.
  • Configure LabVIEW’s file handling policy to reject or quarantine any newly created or unknown VI files until the update is installed.
  • If an immediate update is not possible, limit user access to external VI files and prohibit opening of untrusted files until the fix is applied.

Generated by OpenCVE AI on August 25, 2026 at 21:15 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:ni:labview:2023:q1:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2023:q3:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2023:q3_patch1:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2023:q3_patch2:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2023:q3_patch3:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2023:q3_patch4:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2023:q3_patch5:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2023:q3_patch6:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2023:q3_patch7:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2023:q3_patch8:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2023:q3_patch9:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2024:-:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2024:q1:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2024:q1_patch1:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2024:q3:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2024:q3_patch1:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2024:q3_patch2:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2024:q3_patch3:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2024:q3_patch4:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2024:q3_patch5:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2024:q3_patch6:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2025:q1:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2025:q1_patch1:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2025:q1_patch2:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2025:q1_patch3:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2025:q3:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2025:q3_patch1:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2025:q3_patch2:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2025:q3_patch3:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2025:q3_patch4:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2026:q1:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2026:q1_patch1:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2026:q1_patch2:*:*:*:*:*:*
cpe:2.3:a:ni:labview:2026:q3:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description There is an integer overflow vulnerability resulting in an out-of-bounds write recently discovered in NI LabVIEW.  This may result in information disclosure or arbitrary code execution.  Successful exploitation requires an attacker to get a user to open a specially crafted VI file.  This vulnerability affects NI LabVIEW 2026 Q3 and prior versions.
Title Integer Overflow Vulnerability Resulting in an Out of Bounds Write in NI LabVIEW
First Time appeared Ni
Ni labview
Weaknesses CWE-190
CPEs cpe:2.3:a:ni:labview:*:*:*:*:*:*:*:*
Vendors & Products Ni
Ni labview
References
Metrics cvssV3_1

{'score': 6.6, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N'}

Weaknesses
  • CWE-190

    Integer Overflow or Wraparound

Sources

Status
PUBLISHED
Assigner
NI
Published
Updated
Aug 31, 2026, 3:15 PM
Reserved
Jul 30, 2026, 10:06 PM
Status
Analyzed
Published
Aug 25, 2026, 5:17 PM
Modified
Sep 8, 2026, 2:31 PM