Improper input validation in Intel Quickassist Technology
CVE-2026-20767
Improper input validation for some Intel(R) QAT software drivers for Windows before version 1.13 within Ring 3: User Applications may allow an escalation of privilege. Unprivileged software adversary with an authenticated user combined with a low complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.001 (1.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
- Intel Quickassist Technology
- Intel(r) Qat Software Drivers For Windows — versions before version 1.13
Weakness classification (CWE)
References
- intel.com/content/www/us/en/security-center/advisory/intel-sa-01387.html (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-20767?
- CVE-2026-20767 is a high-severity vulnerability in Intel Quickassist Technology, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2026-05-12.
- How severe is CVE-2026-20767?
- High severity. CVSS v3 base score is 7.8 out of 10.