// For flags

CVE-2025-2633

Out of Bounds Read Vulnerability in NI LabVIEW when loading fonts

Severity Score

7.3
*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

Out of bounds read vulnerability due to improper bounds checking in NI LabVIEW in lvre!UDecStrToNum that may result in information disclosure or arbitrary code execution. Successful exploitation requires an attacker to get a user to open a specially crafted VI. This vulnerability affects NI LabVIEW 2025 Q1 and prior versions.

*Credits: Michael Heinzl working with CISA
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
Passive
System
Vulnerable | Subsequent
Confidentiality
High
None
Integrity
High
None
Availability
High
None
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2025-03-21 CVE Reserved
  • 2025-07-23 CVE Published
  • 2025-07-23 CVE Updated
  • 2025-07-29 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-1285: Improper Validation of Specified Index, Position, or Offset in Input
CAPEC
  • CAPEC-100: Overflow Buffers
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
NI
Search vendor "NI"
 LabVIEW
Search vendor "NI" for product "LabVIEW"
 <= 22.3.5
Search vendor "NI" for product "LabVIEW" and version " <= 22.3.5"
en
Affected
NI
Search vendor "NI"
 LabVIEW
Search vendor "NI" for product "LabVIEW"
 >= 23.0.0 <= 23.3.6
Search vendor "NI" for product "LabVIEW" and version " >= 23.0.0 <= 23.3.6"
en
Affected
NI
Search vendor "NI"
 LabVIEW
Search vendor "NI" for product "LabVIEW"
 >= 24.0.0 <= 24.3.3
Search vendor "NI" for product "LabVIEW" and version " >= 24.0.0 <= 24.3.3"
en
Affected
NI
Search vendor "NI"
 LabVIEW
Search vendor "NI" for product "LabVIEW"
 >= 25.0.0 < 25.3.0
Search vendor "NI" for product "LabVIEW" and version " >= 25.0.0 < 25.3.0"
en
Affected