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CVE-2023-48696

24
FAUCET Score

CVE-2023-48696 is a critical remote code execution vulnerability affecting Azure RTOS USBX, specifically in components related to CDC ACM in versions 6.2.1 and below. An unauthenticated attacker can exploit expired pointer dereferences to achieve full compromise of the system. With a CVSS score of 9.8, this vulnerability poses a severe risk, allowing for complete confidentiality, integrity, and availability impact. While no public exploits, Metasploit modules, or active exploitation have been observed, users are strongly advised to upgrade to USBX release 6.3.0 as there are no known workarounds.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.3.0CPE matchmatch criteria
cpe:2.3:a:eclipse:threadx_usbx:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.7MEDIUM

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

Attack Vector
PHYSICAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
0.4
Impact Score
5.8
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.95%
Probability of exploitation in next 30 days
EPSS Percentile
57.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0095 is in the 42nd percentile among its peer group of 36,835 CVEs.

Social Chatter

No social media mentions found for this CVE.

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/security/advisories/GHSA-h733-98hq-f884
Third Party Advisory