CVE-2023-38021

Name: CVE-2023-38021
Creator: NVD / NIST
Published: 2023-12-30T03:15:08.303+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2023-38021 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An issue was discovered in Fortanix EnclaveOS Confidential Computing Manager (CCM) Platform before 3.32 for Intel SGX. Lack of pointer-alignment validation logic in entry functions allows a local attacker to access unauthorized information. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

An issue was discovered in Fortanix EnclaveOS Confidential Computing Manager (CCM) Platform before 3.32 for Intel SGX. Lack of pointer-alignment validation logic in entry functions allows a local attacker to access unauthorized information. This relates to the enclave_ecall function and system call layer.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.21%

10.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Fortanix	Confidential Computing Manager	< 3.32

References

https://github.com/openenclave/openenclave/security/advisories/GHSA-v3vm-9h66-wm76Not Applicable, Third Party Advisory
https://jovanbulck.github.io/files/oakland24-pandora.pdfThird Party Advisory
https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/advisory-guidance/stale-data-read-from-xapic.htmlNot Applicable, Third Party Advisory
https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/processor-mmio-stale-data-vulnerabilities.html#inpage-nav-3-2-2Not Applicable, Third Party Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00657.htmlNot Applicable, Third Party Advisory
https://github.com/openenclave/openenclave/security/advisories/GHSA-v3vm-9h66-wm76Not Applicable, Third Party Advisory
https://jovanbulck.github.io/files/oakland24-pandora.pdfThird Party Advisory
https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/advisory-guidance/stale-data-read-from-xapic.htmlNot Applicable, Third Party Advisory
https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/processor-mmio-stale-data-vulnerabilities.html#inpage-nav-3-2-2Not Applicable, Third Party Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00657.htmlNot Applicable, Third Party Advisory

Timeline

Published: Dec 30, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-38021?

How severe is CVE-2023-38021?

CVE-2023-38021 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2023-38021?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-38021?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST