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CVE-2026-18445— Integer Overflow Vulnerability Resulting in an Out of Bounds Write in NI LabVIEW

Quick assessment

Affected
NI LabVIEW
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

NI LabVIEW是美国NI公司的一款图形化编程环境。 NI LabVIEW 2026 Q3及之前版本存在数字错误漏洞，该漏洞源于整数溢出导致越界写入，可能导致信息泄露或任意代码执行，成功利用需要攻击者诱使用户打开特制的VI文件。

CVSS 6.6 · Medium EPSS 0.13% · P2

Affected Version Matrix 5

VendorProduct Version RangeStatus
NI LabVIEW < 23.0.0 affected
23.1.0< 23.3.10 affected
24.1.0< 24.3.7 affected
25.1.0< 25.3.5 affected
26.1.0< 26.3.1 affected
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I. Basic Information for CVE-2026-18445

Vulnerability Information
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Vulnerability Title
Integer Overflow Vulnerability Resulting in an Out of Bounds Write in NI LabVIEW
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
NI LabVIEW 数字错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NI LabVIEW是美国NI公司的一款图形化编程环境。 NI LabVIEW 2026 Q3及之前版本存在数字错误漏洞，该漏洞源于整数溢出导致越界写入，可能导致信息泄露或任意代码执行，成功利用需要攻击者诱使用户打开特制的VI文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
NI LabVIEW 0 ~ 23.0.0 -

II. Public POCs for CVE-2026-18445

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III. Intelligence Information for CVE-2026-18445

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Vendor Advisories for CVE-2026-18445 (1)

Same Patch Batch · NI · 2026-08-25 · 8 CVEs total

CVE-2026-16233 7.8 HIGH Out-of-Bounds Write Vulnerability in NI LabVIEW when loading VI
CVE-2026-16234 7.8 HIGH Out-of-Bounds Read Vulnerability in NI LabVIEW when loading VI
CVE-2026-64202 7.8 HIGH Out-of-Bounds Read Vulnerability in NI LabVIEW when loading VI
CVE-2026-64203 7.8 HIGH Out-of-Bounds Read Vulnerability in NI LabVIEW when loading VI
CVE-2026-64201 7.8 HIGH Out-of-Bounds Read Vulnerability in NI LabVIEW when loading VI
CVE-2026-64204 7.8 HIGH Out-of-Bounds Write Vulnerability in NI LabVIEW when loading VI
CVE-2026-18444 6.6 MEDIUM Integer Conversion Vulnerability Resulting in an Out of Bounds Read in NI LabVIEW

IV. Related Vulnerabilities

Same product: LabVIEW
Same vendor: NI
Same weakness: CWE-190

V. Comments for CVE-2026-18445

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