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CVE-2022-2347

7.7 · HIGH

There exists an unchecked length field in UBoot.

Published Sep 23, 2022CWE-122EPSS 0.58%

Overview

CVE-2022-2347 is a high-severity vulnerability. It was published on September 23, 2022 and has a CVSS 3.1 base score of 7.7 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refseclists.org/oss-sec/2022/q3/41Reflists.debian.org/debian-lts-announce/2025/05/msg00001.htmlRefseclists.org/oss-sec/2022/q3/41Refcert-portal.siemens.com/productcert/html/ssa-577017.html

How CyberStrike helps

Frequently asked questions

What is CVE-2022-2347?

CVE-2022-2347 is a high-severity vulnerability. It was published on September 23, 2022 and has a CVSS 3.1 base score of 7.7 (HIGH).

How severe is CVE-2022-2347?

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-2347?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-2347?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-2347 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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