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CVE-2026-18444

Integer Conversion Vulnerability Resulting in an Out of Bounds Read in NI LabVIEW

publishedCWE-195

There is an integer conversion vulnerability resulting in an out-of-bounds read when loading images 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.

Technical severity6.6 mediumCVSS 3.1 · CNA: NI
Published2026-08-25Source updated 2026-11-04
Collected2026-11-043 attributed sources

Fixes and workarounds

Fix

The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.

Source: [email protected]

Affected products and versions

ProductVersionsAuthority
LabVIEW
NI 		≥ 0; < 23.0.0 (affected, semver)
≥ 23.1.0; < 23.3.10 (affected, semver)
≥ 24.1.0; < 24.3.7 (affected, semver)
≥ 25.1.0; < 25.3.5 (affected, semver)
≥ 26.1.0; < 26.3.1 (affected, semver)
Other versions: unaffected 		CNA: NI

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

NVD applicability configurations (1)

These expressions retain AND/OR operators, negation, and required environmental products. A listed product is not sufficient to establish exposure when additional conditions apply.

[
  {
    "negate": false,
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:ni:labview:*:*:*:*:*:*:*:*",
            "versionEndIncluding": "2022",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:ni:labview:2023:q1:*:*:*:*:*:*",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:ni:labview:2023:q3:*:*:*:*:*:*",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:ni:labview:2023:q3_patch1:*:*:*:*:*:*",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:ni:labview:2023:q3_patch2:*:*:*:*:*:*",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:ni:labview:2023:q3_patch3:*:*:*:*:*:*",
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          },
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            "vulnerable": true
          },
          {
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            "vulnerable": true
          },
          {
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          },
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          },
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          },
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          },
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          },
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            "vulnerable": true
          },
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            "vulnerable": true
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          },
          {
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          },
          {
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            "vulnerable": true
          },
          {
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          },
          {
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            "vulnerable": true
          },
          {
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            "vulnerable": true
          },
          {
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            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:ni:labview:2025:q1_patch3:*:*:*:*:*:*",
            "vulnerable": true
          },
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            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:ni:labview:2025:q3_patch1:*:*:*:*:*:*",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:ni:labview:2025:q3_patch2:*:*:*:*:*:*",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:ni:labview:2025:q3_patch3:*:*:*:*:*:*",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:ni:labview:2025:q3_patch4:*:*:*:*:*:*",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:ni:labview:2026:q1:*:*:*:*:*:*",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:ni:labview:2026:q1_patch1:*:*:*:*:*:*",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:ni:labview:2026:q1_patch2:*:*:*:*:*:*",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:ni:labview:2026:q3:*:*:*:*:*:*",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ],
    "operator": "OR"
  }
]

CVSS assessments

Version / scoreVectorAuthority
3.1 / 6.6
medium		 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:HCNA: NI
4.0 / 6.9
medium		 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:NCNA: NI
4.0 / 6.9
medium		 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/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:XNVD: [email protected]
3.1 / 7.8
high		 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HNVD: [email protected]
3.1 / 6.6
medium		 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:HNVD: [email protected]

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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