CVE-2026-19477

8.6 HIGH 0.2% exploit odds Fix listed Memory safety Library

What it is

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.

At a glance

Exploitability: Can be exploited locally on the machine without logging in. High risk of data exposure, data tampering, service disruption.
Exploit odds: 0.2% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-09-17 19:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-09-28 16:17 UTC Last updatedMost recent change to the record

Details

Published: 2026-09-17 19:16 UTC
Last modified: 2026-09-28 16:17 UTC
Exploit probability: 0.2% · EPSS, next 30 days
Weakness: CWE-121
Record status: Deferred

Attack profile CVSS 4.0 · 8.6

Attack vector: Local
Complexity: Low
Attack requirements: None
Privileges needed: None
User interaction: None
Confidentiality: High
Integrity: High
Availability: High

Raw 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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Fix and advisories

https://github.com/mccdaq/uldaq/security/advisories/GHSA-9jr3-33mw-g6jc

References

NVD record · CVE.org record