CVE-2022-2347

Name: CVE-2022-2347
Creator: NVD / NIST
Published: 2022-09-23T13:15:10.133+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.58%

Last modified Jun 17, 2026

CVE-2022-2347 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. There exists an unchecked length field in UBoot. The U-Boot DFU implementation does not bound the length field in USB DFU download setup packets, and it does not verify that the transfer direction corresponds to the specified command. EPSS estimates a 0.58% chance of exploitation in the next 30 days.

Description

There exists an unchecked length field in UBoot. The U-Boot DFU implementation does not bound the length field in USB DFU download setup packets, and it does not verify that the transfer direction corresponds to the specified command. Consequently, if a physical attacker crafts a USB DFU download setup packet with a `wLength` greater than 4096 bytes, they can write beyond the heap-allocated request buffer.

Metrics

CVSS 3.1

7.1/10

CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

0.58%

43.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Denx	U-Boot	>= 2012.10, <= 2022.07

References

https://seclists.org/oss-sec/2022/q3/41Exploit, Mailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/05/msg00001.html
https://seclists.org/oss-sec/2022/q3/41Exploit, Mailing List, Third Party Advisory
https://cert-portal.siemens.com/productcert/html/ssa-577017.html

Timeline

Published: Sep 23, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-2347?

How severe is CVE-2022-2347?

CVE-2022-2347 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.58% probability of exploitation in the next 30 days.

How do I fix CVE-2022-2347?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-2347?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST