CVE-2026-20881: Denial of Service in Intel(R) QAT software drivers for Windows
Divide by zero 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 (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
AI Analysis
Technical Summary
This vulnerability in Intel(R) QAT software drivers for Windows prior to version 1.13 is caused by a divide-by-zero error in user-mode components. An unprivileged attacker with authenticated local access can exploit this flaw without user interaction to cause a denial of service, impacting system availability. The CVSS 4.0 base score is 6.8, reflecting medium severity. There is no indication of confidentiality or integrity impact. The vulnerability requires local access and low complexity to exploit but no special privileges beyond authentication.
Potential Impact
Successful exploitation results in denial of service, affecting system availability. There is no impact on confidentiality or integrity. The attack requires local authenticated access but no user interaction or special privileges beyond that. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed—check the vendor advisory for current remediation guidance. Until an official fix is released, limit local access to trusted users and monitor for unusual application crashes related to Intel QAT drivers. No vendor advisory or official remediation level is currently available.
CVE-2026-20881: Denial of Service in Intel(R) QAT software drivers for Windows
Description
Divide by zero 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 (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
CVSS v4.0
Score 6.8medium
Affected software
pkg:github/intel/qat-driver-windowsRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Intel(R) QAT software drivers for Windows prior to version 1.13 is caused by a divide-by-zero error in user-mode components. An unprivileged attacker with authenticated local access can exploit this flaw without user interaction to cause a denial of service, impacting system availability. The CVSS 4.0 base score is 6.8, reflecting medium severity. There is no indication of confidentiality or integrity impact. The vulnerability requires local access and low complexity to exploit but no special privileges beyond authentication.
Potential Impact
Successful exploitation results in denial of service, affecting system availability. There is no impact on confidentiality or integrity. The attack requires local authenticated access but no user interaction or special privileges beyond that. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed—check the vendor advisory for current remediation guidance. Until an official fix is released, limit local access to trusted users and monitor for unusual application crashes related to Intel QAT drivers. No vendor advisory or official remediation level is currently available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- intel
- Date Reserved
- 2025-12-04T04:00:32.822Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a03656fcbff5d861008daa0
Added to database: 05/12/2026, 17:37:51 UTC
Last enriched: 05/12/2026, 17:52:19 UTC
Last updated: 07/03/2026, 08:51:23 UTC
Views: 82
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