CVE-2019-12256
Wind River VxWorks 6.9 and vx7 has a Buffer Overflow in the IPv4 component. There is an IPNET...
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.
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
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2019-12256- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-120
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2019-12256- Updated
- 2026-11-02
EUVDEUVD-2019-3898 No score
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.
- Record
EUVD-2019-3898- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5g99-hg5x-7m26
Wind River VxWorks 6.9 and vx7 has a Buffer Overflow in the IPv4 component. There is an IPNET...
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 optionss.
- Record
GHSA-5g99-hg5x-7m26- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-120, CWE-787
- Updated
- 2026-11-02
Affected products
- windriver vxworks
- belden garrettcom magnum dx940e firmware
- belden hirschmann hios
- netapp e-series santricity os controller
- siemens power meter 9410 firmware
- siemens power meter 9810 firmware
- siemens ruggedcom win7000 firmware
- siemens ruggedcom win7018 firmware
- siemens ruggedcom win7025 firmware
- siemens ruggedcom win7200 firmware
- siemens siprotec 5 firmware
- sonicwall sonicos
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-12256 is a critical vulnerability (CVSS 9.8) 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 26.8%, the 98th percentile. No source names a fixed version.
References
support2.windriver.com/index.php?page=security-notices
psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0009
cert-portal.siemens.com/productcert/pdf/ssa-632562.pdf
security.netapp.com/advisory/ntap-20190802-0001
windriver.com/security/announcements/tcp-ip-network-stack-ipnet-urgent11