What is CVE-2019-14199?

CVE-2019-14199 is a critical-severity vulnerability in Denx U-Boot, classified under Integer Underflow. CVSS score: 9.8/10. Published 2019-07-31.

How severe is CVE-2019-14199?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Integer overflow in Denx U-Boot

CVE-2019-14199

An issue was discovered in Das U-Boot through 2019.07. There is an unbounded memcpy when parsing a UDP packet due to a net_process_received_packet integer underflow during an *udp_packet_handler call.

Published 2019-07-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.025 (84.6th percentile), scored 2026-10-21.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.022 · newest: 0.025 · change: +0.003

Affected products

Denx U-Boot

Weakness classification (CWE)

CWE-191 — Integer Underflow

References

gitlab.com/u-boot/u-boot (Third Party Advisory)
blog.semmle.com/uboot-rce-nfs-vulnerability/ (Third Party Advisory)
0b142b55-0307-4c5a-b3c9-f314f3fb7c5e

Frequently asked questions

What is CVE-2019-14199?: CVE-2019-14199 is a critical-severity vulnerability in Denx U-Boot, classified under Integer Underflow. CVSS score: 9.8/10. Published 2019-07-31.
How severe is CVE-2019-14199?: Critical severity. CVSS v3 base score is 9.8 out of 10.