CVE-2019-12263
CVSS v3
8.1
HIGH
EPSS Score
3.2 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Wind River VxWorks 6.9.4 and vx7 has a Buffer Overflow in the TCP component (issue 4 of 4). There is an IPNET security vulnerability: TCP Urgent Pointer state confusion due to race condition.
Technical details
- Published
- 2019-08-09
Frequently asked questions
What is CVE-2019-12263?
Wind River VxWorks 6.9.4 and vx7 has a Buffer Overflow in the TCP component (issue 4 of 4). There is an IPNET security vulnerability: TCP Urgent Pointer state confusion due to race condition.
Is CVE-2019-12263 actively exploited?
Active exploitation of CVE-2019-12263 has not been confirmed. Its EPSS score was 3.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2019-12263?
CVE-2019-12263 has a CVSS v3 base score of 8.1 (HIGH severity).
Is CVE-2019-12263 affecting your environment?
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