High severity · published Aug 25, 2026
CVE-2026-18445
Integer Overflow Vulnerability Resulting in an Out of Bounds Write in NI LabVIEW
7.8
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LA
LabVIEW · NI
before 23.0.0; 23.1.0 before 23.3.10; 24.1.0 before 24.3.7; 25.1.0 before 25.3.5; 26.1.0 before 26.3.1 · source: vendor, NVD
In the news
VulnerabilityMedium
ZDI-26-630: NI LabVIEW VI File Parsing Integer Overflow Information Disclosure Vulnerability
This vulnerability allows remote attackers to disclose sensitive information 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 ZDI has assigned a CVSS rating of 3.3. The following CVEs are assigned: CVE-2026-18445.
Sep 9, 2026·Zero Day Initiative
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-18445
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-18445
Patch
https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/2026/integer-overflow-vulnerability-resulting-in-an-out-of-bounds-write-in-ni-labview.html
More from LabVIEW
7.8
CVE-2026-64204
Out-of-Bounds Write Vulnerability in NI LabVIEW when loading VI
7.8
CVE-2026-64203
Out-of-Bounds Read Vulnerability in NI LabVIEW when loading VI
7.8
CVE-2026-64202
Out-of-Bounds Read Vulnerability in NI LabVIEW when loading VI
7.8
CVE-2026-64201
Out-of-Bounds Read Vulnerability in NI LabVIEW when loading VI
7.8
CVE-2026-16234
Out-of-Bounds Read Vulnerability in NI LabVIEW when loading VI