CVE-2026-20782
CVE-2026-20782 is a medium-severity vulnerability in Intel Quickassist Technology with a CVSS 3.x base score of 6.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.
Key facts
- Severity: Medium (CVSS 3.x base score 6.6)
- CVSS v4: 6.9
- EPSS exploit prediction: 0% (1st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-29528
- Weakness: CWE-120
- Affected product: Intel Quickassist Technology
- Published:
- Last modified:
Description
Buffer overflow for some Intel(R) QAT software drivers for Windows before version 1.13 within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a low complexity attack may enable denial of service. 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 (low), integrity (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
Frequently asked questions
- What is CVE-2026-20782?
- Buffer overflow for some Intel(R) QAT software drivers for Windows before version 1.13 within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a low complexity attack may enable denial of service. 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 (low), integrity (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
- How severe is CVE-2026-20782?
- CVE-2026-20782 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.
- Is CVE-2026-20782 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-20782?
- CVE-2026-20782 affects Intel Quickassist Technology. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-20782?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-20782 have an EU (EUVD) identifier?
- Yes. CVE-2026-20782 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29528.
- When was CVE-2026-20782 published?
- CVE-2026-20782 was published on 2026-05-12 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:intel:quickassist_technology:*:*:*:*:*:windows:*:*
More vulnerabilities in Intel Quickassist Technology
- CVE-2025-33000 — High (CVSS 8.8): Improper input validation for some Intel QuickAssist Technology before version 2.6.0 within Ring 3: User Applications…
- CVE-2022-21804 — High (CVSS 8.4): Out-of-bounds write in software for the Intel QAT Driver for Windows before version 1.9.0-0008 may allow an…
- CVE-2022-41699 — High (CVSS 8.2): Incorrect permission assignment for critical resource in some Intel(R) QAT drivers for Windows before version 1.9.0 may…
- CVE-2023-28741 — High (CVSS 7.9): Buffer overflow in some Intel(R) QAT drivers for Windows - HW Version 1.0 before version 1.10 may allow an…
- CVE-2026-20767 — High (CVSS 7.8): Improper input validation for some Intel(R) QAT software drivers for Windows before version 1.13 within Ring 3: User…
- CVE-2026-20714 — High (CVSS 7.8): Out-of-bounds write for some Intel(R) QAT software drivers for Windows before version 1.13 within Ring 3: User…
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