Out-of-bounds Read in Intel Proset\/wireless Wifi
CVE-2026-20778
Out-of-bounds read for some Intel(R) PROSet/Wireless WiFi Software for Windows within Ring 0: Kernel may allow a denial of service. Unprivileged software adversary with an unauthenticated user combined with a high complexity attack may enable denial of service. This result may potentially occur via adjacent access when attack requirements are 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 (high) impacts.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (21.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.5% 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: 0.003 · change: +0.002
Affected products
- Intel Proset\/wireless Wifi
- Intel(r) Proset/wireless Wifi Software For Windows — versions See references
Weakness classification (CWE)
References
- intel.com/content/www/us/en/security-center/advisory/intel-sa-01468.html (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-20778?
- CVE-2026-20778 is a medium-severity vulnerability in Intel Proset\/wireless Wifi, classified under Out-of-bounds Read. CVSS score: 6.8/10. Published 2026-08-11.
- How severe is CVE-2026-20778?
- Medium severity. CVSS v3 base score is 6.8 out of 10.