CVE-2025-30421: Stack-based Buffer Overflow in DrObjectStorage::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: 2025-05-15 · updated 2026-06-17
Weakness: CWE-121

Description

There is a memory corruption vulnerability due to a stack-based buffer overflow in DrObjectStorage::XML_Serialize() when using the 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 14.3.0 and prior versions.

Affected products

NI Circuit Design Suite: before 14.3.1 — fixed in 14.3.1

How to fix

Upgrade to a fixed version: NI Circuit Design Suite 14.3.1. Check the vendor advisory for mitigations.

References

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

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