TI-2025-21722 Aliases CVE-2025-30421 GHSA-5ppx-9rrh-j4wr

Stack-based Buffer Overflow in DrObjectStorage::XML_Serialize() in NI Circuit Design Suite

LOW 38CWE-121Published 2025-05-15 · Updated 2025-05-15

Key facts

Attack vector: Local
Privileges required: None
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00207 10th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
NI	Circuit Design Suite	up to 14.3.0	—	No fix listed	CNA

Circuit Design Suite VendorNI Affected up to 14.3.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:ni:circuit_design_suite::::::::	before 14.3.1	Vulnerable	NI

cpe:2.3:a:ni:circuit_design_suite:*:*:*:*:*:*:*:* Versions before 14.3.1 Vulnerable ·NI

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-30421
2026-10-03 Alias added: GHSA-5ppx-9rrh-j4wr

References

Advisory 1

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

TI-2025-21721 Out of Bounds Read in Bitmap::InternalDraw() in NI Circuit Design Suite CVSS 4.0HIGH 8.5
TI-2025-21720 Out of Bounds Read in GetSymbolBorderRectSize() in NI Circuit Design Suite CVSS 4.0HIGH 8.5
TI-2025-21719 Out of Bounds Write in CheckPins() in NI Circuit Design Suite CVSS 4.0HIGH 8.5
TI-2025-21718 Out of Bounds Write in Library!DecodeBase64() in NI Circuit Design Suite CVSS 4.0HIGH 8.5
TI-2025-05452 Out of Bounds Read in DefaultFontOptions() in NI Circuit Design Suite CVSS 4.0HIGH 8.5
TI-2025-05451 Memory Corruption issue in XML_Serialize() in NI Circuit Design Suite CVSS 4.0HIGH 8.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences