CVE-2019-12256

—

CVSS 3.1

9.8 critical

EPSS

27%p98

Published

Aug 9, 2019 (Aug 9, 2019)

Modified

Jun 17, 2026

Description

Wind River VxWorks 6.9 and vx7 has a Buffer Overflow in the IPv4 component. There is an IPNET security vulnerability: Stack overflow in the parsing of IPv4 packets’ IP options.

Vendors: windriver netapp sonicwall siemens belden
Products: vxworks, e-series santricity os controller, sonicos, siprotec 5 firmware, power meter 9410 firmware, power meter 9810 firmware, ruggedcom win7000 firmware, ruggedcom win7018 firmware, ruggedcom win7025 firmware, ruggedcom win7200 firmware, hirschmann hios, garrettcom magnum dx940e firmware
Weakness: CWE-120
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (26.6%)

In the news2 stories

Critical zero-days discovered in VxWorks RTOS, billions of devices at risk

Security AffairsJul 30, 07:25 UTC · Jul 30, 2019Exploit / PoC CVE-2019-12256 CVE-2019-12255 CVE-2019-12260+8 CVEs

Critical Flaws Found in VxWorks RTOS That Powers Over 2 Billion Devices

The Hacker NewsJul 29, 16:19 UTC · Jul 29, 2019Exploit / PoC CVE-2019-12256 CVE-2019-12255 CVE-2019-12260+8 CVEs