CVE-2026-19477 PUBLISHED

Stack-based Buffer Overflow Vulnerability in Linux (uldaq)

Assigner: NI
Reserved: 10.08.2026 Published: 17.09.2026 Updated: 17.09.2026

There is stack-based buffer overflow vulnerability recently discovered in MCC Universal Library for Linux (uldaq). This may result in information disclosure or arbitrary code execution. This vulnerability affects MCC Universal Library for Linux (uldaq) v1.2.1 and prior versions.

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS Score: 7.8

Attack Vector	Local	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	Required	Availability Impact	High

CVSS 3.1

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.6

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	MCC
Product	Universal Library for Linux (uldaq)
Versions	Default: unaffected affected from 0 to 1.2.1 (incl.)

References

https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/2026/stack-based-buffer-overflow-vulnerability-linux-uldaq.html

Problem Types

CWE-121 Stack-based buffer overflow CWE

Impacts

CAPEC-100 Overflow Buffers