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CVE-2022-33967

Published: Jul 20, 2022Updated: Nov 3, 2025 Sources: CVE List NVDCWE-787
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.5%
Top 60.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

squashfs filesystem implementation of U-Boot versions from v2020.10-rc2 to v2022.07-rc5 contains a heap-based buffer overflow vulnerability due to a defect in the metadata reading process. Loading a specially crafted squashfs image may lead to a denial-of-service (DoS) condition or arbitrary code execution.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-787

Affected Products

U-BootDENX Software Engineering
Embedded
Hardware Firmware / bios-uefi
u-bootdenx
Embedded
DevTools & CI / build-test-tools
denx software engineeringoss-projectDEHardware Firmware
denxoss-projectDevTools & CI

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://www.denx.de/project/u-boot/
denx.de
https://lists.denx.de/pipermail/u-boot/2022-June/487467.html
lists.denx.de
https://source.denx.de/u-boot/u-boot/-/commit/7f7fb9937c6cb49dd35153bd6708872b390b0a44
source.denx.de
and 2 more references View all →

Timeline

Published
Jul 20, 2022
Last Updated
Nov 3, 2025

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