TI-2026-15861 Aliases CVE-2026-19477 GHSA-j395-f5mc-4872

Stack-based Buffer Overflow Vulnerability in Linux (uldaq)

LOW 39CWE-121Published 2026-09-17 · Updated 2026-09-28

Key facts

Attack vector: Local
Privileges required: None
User interaction: None
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 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00203 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
MCC	Universal Library for Linux (uldaq)	up to 1.2.1	—	No fix listed	CNA

Universal Library for Linux (uldaq) VendorMCC Affected up to 1.2.1 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-19477
2026-10-03 Alias added: GHSA-j395-f5mc-4872

References

Other 2

Sources

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