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CVE-2019-14193

29
FAUCET Score

CVE-2019-14193 describes a critical vulnerability in Das U-Boot through version 2019.07, specifically an unbounded memcpy in the nfs_readlink_reply function due to an unvalidated length calculation. This flaw carries a CVSS score of 9.8, indicating a severe risk with network-based exploitation, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2019.07CPE matchmatch criteria
cpe:2.3:a:denx:u-boot:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.57%
Probability of exploitation in next 30 days
EPSS Percentile
83.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0257 is in the 74th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

microsoft2019-Jul/CVE-2019-14193Critical

An issue was discovered in Das U-Boot through 2019.07. There is an unbounded memcpy with an unvalidated length at nfs_readlink_reply, in the "if" block after calculating the new path length.

Jul 9, 2019

References

cert-portal.siemens.com / productcert/html/ssa-577017.html
blog.semmle.com / uboot-rce-nfs-vulnerability
Third Party Advisory
gitlab.com / u-boot/u-boot
Third Party Advisory
web.archive.org / web/20191130052117/https://blog.semmle.com/uboot-rce-nfs-vulnerability