What is CVE-2023-28378?

CVE-2023-28378 is a medium-severity vulnerability in Intel Quickassist Technology, classified under Improper Authorization. CVSS score: 6.7/10. Published 2023-11-14.

How severe is CVE-2023-28378?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Auth bypass in Intel Quickassist Technology

CVE-2023-28378

Improper authorization in some Intel(R) QAT drivers for Windows - HW Version 2.0 before version 2.0.4 may allow an authenticated user to potentially enable escalation of privilege via local access.

Published 2023-11-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (8.5th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Intel Quickassist Technology
Intel Quickassist Technology Firmware
Intel Quickassist Technology Library — versions 22.07.1
Microsoft Windows
Intel(r) Qat Drivers For Windows - Hw Version 2.0 — versions before version 2.0.4

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00861.html (Vendor Advisory)

Frequently asked questions

What is CVE-2023-28378?: CVE-2023-28378 is a medium-severity vulnerability in Intel Quickassist Technology, classified under Improper Authorization. CVSS score: 6.7/10. Published 2023-11-14.
How severe is CVE-2023-28378?: Medium severity. CVSS v3 base score is 6.7 out of 10.