CVE-2019-12258

Wind River VxWorks 6.5 through 6.9 and vx7 has Session Fixation in the TCP component. This is a...

7.5 High

Wind River VxWorks 6.6 through vx7 has Session Fixation in the TCP component. This is a IPNET security vulnerability: DoS of TCP connection via malformed TCP options.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

22.9%Up 9.4 points since Apr 14, 2021

What each source reports

NVD Score used 7.5

Wind River VxWorks 6.6 through vx7 has Session Fixation in the TCP component. This is a IPNET security vulnerability: DoS of TCP connection via malformed TCP options.

Record: CVE-2019-12258
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness: CWE-384
Updated: 2026-11-02

CVE List No score

Wind River VxWorks 6.6 through vx7 has Session Fixation in the TCP component. This is a IPNET security vulnerability: DoS of TCP connection via malformed TCP options.

Record: CVE-2019-12258
Updated: 2026-11-02

EUVDEUVD-2019-3900 No score

Wind River VxWorks 6.6 through vx7 has Session Fixation in the TCP component. This is a IPNET security vulnerability: DoS of TCP connection via malformed TCP options.

Record: EUVD-2019-3900
Updated: 2026-11-03

GitHub AdvisoriesGHSA-x2h4-587f-rjrg 7.5

Wind River VxWorks 6.5 through 6.9 and vx7 has Session Fixation in the TCP component. This is a...

Wind River VxWorks 6.5 through 6.9 and vx7 has Session Fixation in the TCP component. This is a IPNET security vulnerability: DoS of TCP connection via malformed TCP options.

Record: GHSA-x2h4-587f-rjrg
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-384
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Metasploit	URGENT/11 Scanner, Based on Detection Tool by Armis	2019-08-09

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, Metasploit, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-12258 is a high vulnerability (CVSS 7.5) in Windriver Vxworks, published August 9, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 22.9%, the 97th percentile. No source names a fixed version.

References

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