CVE-2025-6033: Memory Corruption issue in XML_Serialize() in NI Circuit Design Suite

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-09-30 · updated 2026-06-17
Weakness: CWE-787

Description

There is a memory corruption vulnerability due to an out of bounds write in XML_Serialize() when using SymbolEditor in NI Circuit Design Suite. This vulnerability may result in information disclosure or arbitrary code execution. Successful exploitation requires an attacker to get a user to open a specially crafted .sym file. This vulnerability affects NI Circuit Design Suite 14.3.1 and prior versions.

Affected products

NI Circuit Design Suite: before 14.3.2 — fixed in 14.3.2

How to fix

Upgrade to a fixed version: NI Circuit Design Suite 14.3.2. Check the vendor advisory for mitigations.

References

https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/improper-input-validation-causes-memory-corruption-vulnerabilities-in-circuit-design-suite.html

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