LiveActive security incident?Get immediate response
CVE Record

CVE-2019-14200: An issue was discovered in Das U-Boot through 2019.07.

An issue was discovered in Das U-Boot through 2019.07. There is a stack-based buffer overflow in this nfs_handler reply helper function: rpc_lookup_reply.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2019-14200 is a stack-based buffer overflow in Das U-Boot through version 2019.07. The issue is tied to NFS reply handling during bootloader network operations. Business risk depends on whether affected firmware is present and reachable in boot or recovery paths.

Executive priority

Prioritize asset discovery and vendor guidance checks for embedded or industrial systems. Urgency is higher where network boot paths are exposed, because bootloader flaws can sit below normal operating-system controls.

Technical view

The CVE identifies a stack overflow in the U-Boot NFS handler helper function rpc_lookup_reply. The public record does not provide CVSS, CWE, confirmed affected product mappings, or a vendor fix summary in the supplied bundle.

Likely exposure

Most likely exposure is devices or firmware images using Das U-Boot through 2019.07 with NFS/network boot behavior enabled or reachable. Product-specific exposure is not complete in the provided sources.

Exploitation context

The bundle links Semmle analysis describing an NFS-related U-Boot RCE issue, but CISA KEV is false and no active exploitation evidence is provided. Treat exploit status as unconfirmed from these sources.

Researcher notes

Evidence is sparse in the CVE bundle: no CVSS, CWE, CPEs, or explicit patch reference are included. Focus analysis on rpc_lookup_reply in U-Boot NFS handling and vendor-specific advisories before asserting exploitability for any product.

Mitigation direction

  • Inventory firmware for Das U-Boot versions through 2019.07.
  • Check U-Boot and device vendor advisories for fixed firmware.
  • Review Siemens SSA-577017 if Siemens equipment is in scope.
  • Disable or restrict NFS/network boot where not required.
  • Isolate bootloader and recovery interfaces from untrusted networks.

Validation and detection

  • Confirm whether devices use Das U-Boot and record bootloader versions.
  • Identify whether NFS boot or recovery paths are enabled.
  • Map affected firmware to vendor advisories and release notes.
  • Check network segmentation around bootloader-accessible services.
  • Document compensating controls for devices awaiting vendor firmware.
Prepared
Confidence
medium
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2019-14200 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
2ADP providers
4Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CVECVE Program Container
siemens-SADPADP container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.