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CVE-2019-12255

CriticalPublished

Wind River VxWorks has a Buffer Overflow in the TCP component (issue 1 of 4). This is a IPNET security vulnerability: TCP Urgent Pointer = 0 that leads to...

Published: Aug 9, 2019
Updated: Aug 4, 2024
Assigning CNA: mitre
Evidence observed: Aug 12, 2019

Primary CVSS

9.8/ 10Critical

nvd · CVSS 3.1

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

EPSS probability estimate

75.3%

High · next 30 days

Percentile: 99.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Wind River VxWorks has a Buffer Overflow in the TCP component (issue 1 of 4). This is a IPNET security vulnerability: TCP Urgent Pointer = 0 that leads to an integer underflow.

Sources

VxWorks 6.8 - TCP Urgent Pointer = 0 Integer UnderflowExploit
Zhou Yu · vxworks · Aug 12, 2019

Responsible use

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