CVE-2026-64201

Code execution via EnQRunQ out-of-bounds read

Published Aug 25, 2026 · Updated Aug 26, 2026

Out-of-bounds read in the EnQRunQ function in NI LabVIEW 26.3.0 and earlier allows attackers to disclose data or execute code via a crafted VI. EnQRunQ reads beyond a buffer boundary while LabVIEW loads the malformed VI, exposing adjacent process memory and enabling control-flow compromise. Attackers must persuade a user to open the file; the LabVIEW process can disclose data, crash, or execute attacker-controlled code.

CVSS severity8.5
High
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in the EnQRunQ function in NI LabVIEW 26.3.0 and earlier allows attackers to disclose data or execute code via a crafted VI. EnQRunQ reads beyond a buffer boundary while LabVIEW loads the malformed VI, exposing adjacent process memory and enabling control-flow compromise. Attackers must persuade a user to open the file; the LabVIEW process can disclose data, crash, or execute attacker-controlled code.

The record

CVE
CVE-2026-64201
Published
Aug 25, 2026
Updated
Aug 26, 2026
Vendor
National Instruments
Product
LabVIEW
Classifications
CWE-125, CAPEC-100, T1203, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <23.0.0
  2. Affected versionversion=23.1.0 <23.3.10
  3. Affected versionversion=24.1.0 <24.3.7
  4. Affected versionversion=25.1.0 <25.3.5
  5. Affected versionversion=26.1.0 <26.3.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

National Instruments · LabVIEWversion=0 <23.0.0; version=23.1.0 <23.3.10; version=24.1.0 <24.3.7; version=25.1.0 <25.3.5; version=26.1.0 <26.3.1

Published CVSS scores

8.5National InstrumentsCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8National InstrumentsCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
CAPEC-100Overflow Buffers
T1203Exploitation for Client Execution
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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