Is CVE-2022-2347 in the CISA KEV catalog?

No. CVE-2022-2347 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-2347?

CVE-2022-2347 has a CVSS v3 base score of 7.7 (HIGH).

What is the EPSS score for CVE-2022-2347?

CVE-2022-2347 has an EPSS score of 0.58% (44th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-2347?

Upgrade u-boot on debian 11 to 2021.01+dfsg-5+deb11u1 or later. Fixes are available for 18 affected products.

CVE & CISA-KEV Catalog

CVE-2022-2347

HIGH

7.7

CVSS v3

NVD

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.

CWE-122Heap-based Buffer Overflow CWE-787Out-of-bounds Write

How to fix

Remediation Available

u-bootDebian

Fixed in:2021.01+dfsg-5+deb11u1CVE-2022-2347

Fixed in:2023.01~rc4+dfsg-2CVE-2022-2347

u-bootUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-amlogicUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-exynosUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-imxUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-microchipUbuntu

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-mvebuUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-nezhaUbuntu

Fixed in:2022.04+git20220405.7446a472-0ubuntu0.4USN-6523-1

Fixed in:2022.10-1089-g528ae9bc6c-0ubuntu1.23.04.2USN-6523-1

u-boot-omapUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-qcomUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-qemuUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-rockchipUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-rpiUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-sifiveUbuntu

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-stm32Ubuntu

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-sunxiUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-tegraUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-toolsUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.58%probability of exploitation in 30 days

44thpercentile

Moderate risk: more likely to be exploited than 44% of all known CVEs.

References

Exploit1

seclists.org

Other references2

Related Vulnerabilities

Other CWE-122 (Heap-based Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2024-26256	High	7.8	88%	-	Fix
CVE-2020-25687	Medium	5.9	87%	-	Fix
CVE-2009-3459	High	8.8	86%	KEV	Fix
CVE-2021-21017	High	8.8	86%	KEV	-
CVE-2020-25683	Medium	5.9	86%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-12.