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CVE-2022-29246

30
FAUCET Score

CVE-2022-29246 is a critical buffer overflow vulnerability in Azure RTOS USBX, affecting versions prior to 6.1.11 of eclipse threadx_usbx. An attacker can trigger this by sending a crafted DFU UPLOAD command with an oversized length, potentially overwriting memory. This flaw carries a CVSS score of 9.8 (Critical) due to its network-based attack vector, low complexity, and high impact on confidentiality, integrity, and availability, allowing for security bypass or arbitrary code execution. Currently, there is no known active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.1.11CPE matchmatch criteria
cpe:2.3:a:eclipse:threadx_usbx:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.21%
Probability of exploitation in next 30 days
EPSS Percentile
80.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0221 is in the 70th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / azure-rtos/usbx/blob/master/common/usbx_device_classes/src/ux_device_class_dfu_control_request.c
Third Party Advisory
github.com / azure-rtos/usbx/releases/tag/v6.1.11_rel
Release NotesThird Party Advisory
github.com / azure-rtos/usbx/security/advisories/GHSA-hh5p-x584-j8hv
Third Party Advisory