CVE-2026-20891

Summary

CVE	CVE-2026-20891
State	PUBLISHED
Assigner	intel
Source Priority	CVE Program / NVD first with legacy fallback
Published	2026-08-11 17:17:54 UTC
Updated	2026-08-26 19:26:54 UTC
Description	Improper authentication for some Intel(R) PROSet/Wireless WiFi Software for Windows within Ring 2: Device Drivers may allow an escalation of privilege. Unprivileged software adversary with an unauthenticated user combined with a low complexity attack may enable local code execution. 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 (low), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (low) and availability (low) impacts.

Risk And Classification

Primary CVSS: v4.0 6.3 MEDIUM from [email protected]

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.001580000 probability, percentile 0.052210000 (date 2026-08-26)

Problem Types: CWE-287 | Escalation of Privilege | CWE-287 Improper Authentication | CWE-287 CWE-287 Improper Authentication

Version	Source	Type	Score	Severity	Vector
4.0	[email protected]	Secondary	6.3	MEDIUM	`CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:L/E:X/C...`
4.0	CNA	CVSS	6.3	MEDIUM	`CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:L`
3.1	[email protected]	Primary	7.9	HIGH	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L`

CVSS v4.0 Breakdown

Attack Vector

Local

Attack Complexity

Low

Attack Requirements

None

Privileges Required

None

User Interaction

None

Confidentiality

Low

Integrity

None

Availability

None

Sub Conf.

High

Sub Integrity

Low

Sub Availability

Low

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

Low

Availability

Low

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

NVD Known Affected Configurations (CPE 2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Hardware	Intel	Killer Wi-fi 6e Ax1675i/s	-	All	All	All
Hardware	Intel	Killer Wi-fi 6e Ax1675x/w	-	All	All	All
Hardware	Intel	Killer Wi-fi 6 Ax1650i/s	-	All	All	All
Hardware	Intel	Killer Wi-fi 7 Be1750i/s	-	All	All	All
Hardware	Intel	Killer Wi-fi 7 Be1750x/w	-	All	All	All
Hardware	Intel	Killer Wi-fi 7 Be1775i/s	-	All	All	All
Application	Intel	Proset/wireless Wifi	All	All	All	All
Hardware	Intel	Wi-fi 6e Ax211	-	All	All	All
Hardware	Intel	Wi-fi 6 Ax200	-	All	All	All
Hardware	Intel	Wi-fi 6 Ax201	-	All	All	All
Hardware	Intel	Wi-fi 6 Ax210	-	All	All	All
Hardware	Intel	Wi-fi 7 Be200	-	All	All	All
Hardware	Intel	Wi-fi 7 Be201	-	All	All	All
Hardware	Intel	Wi-fi 7 Be211	-	All	All	All
Hardware	Intel	Wi-fi 7 Be213	-	All	All	All
Hardware	Intel	Wireless-ac 9461	-	All	All	All
Hardware	Intel	Wireless-ac 9462	-	All	All	All
Hardware	Intel	Wireless-ac 9560	-	All	All	All

Vendor Declared Affected Products

Source	Vendor	Product	Version	Platforms
CNA	Na	IntelR PROSet/Wireless WiFi Software For Windows	affected See references	Not specified

References

Reference	Source	Link	Tags
intel.com/content/www/us/en/security-center/advisory/intel-sa-01422.html	[email protected]	intel.com	Vendor Advisory
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

There are currently no legacy QID mappings associated with this CVE.