CVE-2026-20881

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 v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploit Prediction

0.0001

Probability of exploitation

0.03%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-369 CWE-369

Affected Products

Vendor	Product	Versions
intel	quickassist_technology	< 1.13.0-0021

References

Advisories & Patches

https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01387.html

Frequently Asked Questions

What is CVE-2026-20881? +

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. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-20881? +

CVE-2026-20881 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0001, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-20881? +

CVE-2026-20881 affects products from intel, specifically: quickassist_technology. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-20881? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2025-4637

Divide By Zero vulnerability in davisking dlib allows remote attackers to cause a denial of service via a crafted file. …

CVE-2025-54873

RISC Zero is a zero-knowledge verifiable general computing platform based on zk-STARKs and the RISC-V microarchitecture. RISC packages risc0-zkvm versions …

CVE-2024-26945 8.4

In the Linux kernel, the following vulnerability has been resolved: crypto: iaa - Fix nr_cpus < nr_iaa case If nr_cpus …

CVE-2024-4785 7.6

BT: Missing Check in LL_CONNECTION_UPDATE_IND Packet Leads to Division by Zero

CVE-2024-6135 7.6

BT:Classic: Multiple missing buf length checks

CVE-2026-33593 7.5

A client can trigger a divide by zero error leading to crash by sending a crafted DNSCrypt query.