What is CVE-2022-21804?

CVE-2022-21804 is a high-severity vulnerability in Intel Quickassist Technology, classified under Out-of-bounds Write. CVSS score: 8.4/10. Published 2023-05-10.

How severe is CVE-2022-21804?

High severity. CVSS v3 base score is 8.4 out of 10.

Buffer overflow in Intel Quickassist Technology

CVE-2022-21804

Out-of-bounds write in software for the Intel QAT Driver for Windows before version 1.9.0-0008 may allow an authenticated user to potentially enable escalation of privilege via local access.

Vulnerability class: Buffer Overflow

Published 2023-05-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (7.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 7.8% 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 Qat Driver For Windows — versions before version 1.9.0-0008

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00809.html (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2022-21804?: CVE-2022-21804 is a high-severity vulnerability in Intel Quickassist Technology, classified under Out-of-bounds Write. CVSS score: 8.4/10. Published 2023-05-10.
How severe is CVE-2022-21804?: High severity. CVSS v3 base score is 8.4 out of 10.