Quick answers
- Is CVE-2026-20878 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-20878 being exploited in the wild.
- How severe is CVE-2026-20878?
- High severity, with a CVSS score of 7.4, published 11 August 2026.
- Which products and versions are affected?
- Intel PROSet/Wireless WiFi Software affected versions unspecified.
- Is there a fix for CVE-2026-20878?
- 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-2026-20878 attacked?
- It is attacked over the network or from the adjacent network.
- Am I affected by CVE-2026-20878?
- 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 is a null pointer dereference vulnerability in Intel PROSet/Wireless WiFi Software's Ring 2 device driver for Windows. The vulnerability is triggered via an adjacent network attack vector (AV:A) with low attack complexity (AC:L) and requires no user interaction or privilege escalation. An unauthenticated network adversary can send specially crafted packets to cause a null pointer dereference, resulting in a kernel-mode crash and denial of service. The vulnerability impacts system availability (VA:H) with minimal secondary impacts. Patches are expected from Intel's security advisory INTEL-SA-01422.
Affected products
- Intel PROSet/Wireless WiFi Software affected versions unspecified
Timeline
- 2026-08-11: disclosed: Published via NVD and Intel Security Advisory INTEL-SA-01422