Is CVE-2019-14200 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2019-14200 being exploited in the wild.

How severe is CVE-2019-14200?

Critical severity, with a CVSS score of 9.8, published 31 July 2019.

Is there a fix for CVE-2019-14200?

A patch was published on 2026-05-12: Siemens released Ruggedcom Rox II V2.17.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2019-14200 attacked?

It is attacked over the network, in device firmware.

Am I affected by CVE-2019-14200?

Check whether you run Denx U-Boot or Siemens ROX II at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2019-14200: Das U-Boot stack overflow in rpc_lookup_reply

CVE-2019-14200 · Severity: critical · CVSS 9.8 · Published 2019-07-31

A critical vulnerability exists in the U-Boot bootloader, which is widely used in embedded systems and networking hardware. An attacker could exploit this flaw to gain full control over a device during its startup process. This could lead to permanent device compromise, data theft, or a complete loss of service for the affected hardware.

Technologies: Denx U-Boot, Siemens ROX II. Vendors: Denx, Siemens.

Quick answers

Is CVE-2019-14200 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2019-14200 being exploited in the wild.
How severe is CVE-2019-14200?: Critical severity, with a CVSS score of 9.8, published 31 July 2019.
Which products and versions are affected?: Siemens ROX II before 2.17.1.
Is there a fix for CVE-2019-14200?: A patch was published on 2026-05-12: Siemens released Ruggedcom Rox II V2.17.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2019-14200 attacked?: It is attacked over the network, in device firmware.
Am I affected by CVE-2019-14200?: Check whether you run Denx U-Boot or Siemens ROX II at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stack-based buffer overflow vulnerability exists in Das U-Boot through version 2019.07 within the nfs_handler reply helper function 'rpc_lookup_reply'. The flaw is caused by improper bounds checking when processing RPC lookup replies over the network via NFS. A remote, unauthenticated attacker can exploit this by sending specially crafted packets to a device running the vulnerable bootloader. Successful exploitation can lead to arbitrary code execution with high privileges, potentially allowing for a full system compromise before the operating system even loads. Siemens has identified this as affecting several Ruggedcom Rox II devices, with fixes available in version 2.17.1.

Affected products

Das U-Boot U-Boot through 2019.07
Siemens Ruggedcom Rox II family before 2.17.1

Timeline

2019-07-31: disclosed
2019-07-31: advisory: NVD published date
2026-05-12: patched: Siemens released Ruggedcom Rox II V2.17.1

References

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