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CVE-2026-20891

Medium

Elevated severity or exploit probability.

CVSS base
7.9 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
EPSS — probability of exploitation (30 days)
0.1%
2.7th percentile
CISA KEV
Not listed
Weakness / dates
CWE-287
Published 2026-08-11 · modified 2026-08-26

CVSS breakdown

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

Attack VectorLLocal
Attack ComplexityLLow
Privileges RequiredLLow
User InteractionNNone
ScopeCChanged
ConfidentialityHHigh
IntegrityLLow
AvailabilityLLow

Timeline

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.

Affected

intel

References

Official: NVD · CVE.org