CVE-2024-6638 | Integer Overflow Vulnerability Reading TDMS Files in LabVIEW

An integer overflow vulnerability due to improper input validation when reading TDMS files in LabVIEW may result in an infinite loop. Successful exploitation requires an attacker to provide a user with a specially crafted TDMS file. This vulnerability affects LabVIEW 2024 Q1 and prior versions.

Published: 2024-07-22 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-6638 is rated Low Risk (24/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.16%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-6638

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.05% 0.16% +0.11%
2 2025-08-30 0.04% 0.05% +0.01%
3 2024-07-23 — 0.04% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-6638

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]

Weakness enumeration for CVE-2024-6638

Affected software / configurations for CVE-2024-6638

Vendor Product Version Raw CPE
ni labview <= 2021 cpe:2.3:a:ni:labview:*:*:*:*:*:*:*:*
ni labview 2022 cpe:2.3:a:ni:labview:2022:q1:*:*:*:*:*:*
ni labview 2022 cpe:2.3:a:ni:labview:2022:q3:*:*:*:*:*:*
ni labview 2022 cpe:2.3:a:ni:labview:2022:q3_patch1:*:*:*:*:*:*
ni labview 2022 cpe:2.3:a:ni:labview:2022:q3_patch2:*:*:*:*:*:*
ni labview 2023 cpe:2.3:a:ni:labview:2023:q1:*:*:*:*:*:*
ni labview 2023 cpe:2.3:a:ni:labview:2023:q3:*:*:*:*:*:*
ni labview 2023 cpe:2.3:a:ni:labview:2023:q3_patch1:*:*:*:*:*:*
ni labview 2023 cpe:2.3:a:ni:labview:2023:q3_patch2:*:*:*:*:*:*
ni labview 2023 cpe:2.3:a:ni:labview:2023:q3_patch3:*:*:*:*:*:*
ni labview 2023 cpe:2.3:a:ni:labview:2023:q3_patch4:*:*:*:*:*:*
ni labview 2024 cpe:2.3:a:ni:labview:2024:q1:*:*:*:*:*:*
ni labview 2024 cpe:2.3:a:ni:labview:2024:q1_patch1:*:*:*:*:*:*

References for CVE-2024-6638

cvelogic Threat Intelligence