PatchSiren

PatchSiren cyber security CVE debrief

CVE-2025-64466 National Instruments CVE debrief

CVE-2025-64466 is a high-severity LabVIEW vulnerability disclosed by CISA on 2025-12-18. The advisory says an out-of-bounds read in lvre!ExecPostedProcRecPost() can occur when a corrupted VI is opened. In the worst case, this may disclose information or allow arbitrary code execution. Successful exploitation requires a user to open a specially crafted VI file.

Vendor
National Instruments
Product
LabVIEW
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2025-12-18
Original CVE updated
2025-12-18
Advisory published
2025-12-18
Advisory updated
2025-12-18

Who should care

Organizations that use National Instruments LabVIEW, especially teams that exchange, review, or open VI files from external or untrusted sources. Administrators responsible for LabVIEW patching should prioritize affected deployments.

Technical summary

The official advisory describes an out-of-bounds read in lvre!ExecPostedProcRecPost() triggered by opening a corrupted VI. The attack requires user interaction (a user must open a specially crafted VI file). CISA lists the issue with CVSS 3.1 vector AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H and score 7.8, indicating potential impact to confidentiality, integrity, and availability.

Defensive priority

High

Recommended defensive actions

  • Upgrade LabVIEW 2025 to LabVIEW 2025 Q3 Patch 3 or later using NI Package Manager or Software Downloads.
  • Upgrade LabVIEW 2024 to LabVIEW 2024 Q3 Patch 5 or later using NI Package Manager or Software Downloads.
  • Upgrade LabVIEW 2023 to LabVIEW 2023 Q3 Patch 8 or later using NI Package Manager or Software Downloads.
  • Upgrade LabVIEW 2022 to LabVIEW 2022 Q3 Patch 7 or later using NI Package Manager or Software Downloads.
  • If you still rely on LabVIEW 2021, note that it is not in mainstream support and work with NI on a supported remediation path.
  • Reduce exposure to untrusted VI files and treat any unexpected or corrupted VI as suspicious until patched systems are confirmed safe.

Evidence notes

Based on the supplied CISA CSAF advisory for National Instruments LabVIEW (ICSA-25-352-03) and the referenced official NI remediation guidance. The source states the vulnerability occurs when opening a corrupted VI and that exploitation requires user interaction. The advisory also provides version-specific fixes for LabVIEW 2025, 2024, 2023, and 2022, and notes LabVIEW 2021 is not in mainstream support.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-64466 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-64466

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-64466 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-64466

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2025/icsa-25-352-03.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-25-352-03

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/resources-tools/resources/ics-recommended-practices

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/topics/industrial-control-systems

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/sites/default/files/publications/emailscams0905.pdf

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/ncas/tips/ST04-014

    Reference

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.