Quick answers
- Is CVE-2026-20739 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-20739 being exploited in the wild.
- How severe is CVE-2026-20739?
- High severity, with a CVSS score of 7.4, published 11 August 2026.
- Which products and versions are affected?
- Intel PROSet/Wireless WiFi Software multiple versions (see Intel INTEL-SA-01422).
- Is there a fix for CVE-2026-20739?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-20739 attacked?
- It is attacked from the adjacent network.
- Am I affected by CVE-2026-20739?
- Check whether you run Intel Killer Wi-Fi 6 Ax1650i\/S, Intel Killer Wi-Fi 6e Ax1675i\/S, Intel Killer Wi-Fi 6e Ax1675x\/W or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
This vulnerability is an improper conditions check in Intel PROSet/Wireless WiFi Software's Ring 2 device driver for Windows. The flaw allows a network adversary to craft specially-formed packets that trigger a denial-of-service condition when processed by the WiFi driver. Attack vector is adjacent network access (AV:A) with no privileges or user interaction required. An attacker can cause system unavailability by exploiting this logic error in the driver's packet-handling code. Patches are available from Intel as part of advisory INTEL-SA-01422.
Affected products
- Intel PROSet/Wireless WiFi Software multiple versions (see Intel INTEL-SA-01422)
Timeline
- 2026-08-11: disclosed
- 2026-08-11: advisory: Intel INTEL-SA-01422 published with patch availability