CVE-2021-0063

Improper input validation in firmware for some Intel(R) PROSet/Wireless WiFi and Killer(TM) WiFi in Windows 10 may allow an unauthenticated user to potentially enable denial of service via adjacent access.

Published: 2021-11-17 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-0063 is rated Low Risk (33.3/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.07%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-0063

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-06-01 0.18% 0.07% -0.12%
2 2025-03-17 0.05% 0.18% +0.13%
3 2023-04-30 — 0.05% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-0063

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]
6.1 2.0 MEDIUM
AV:A/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:A)
Requires access to an adjacent network segment.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 6.5 6.9 [email protected]

Weakness enumeration for CVE-2021-0063

Affected software / configurations for CVE-2021-0063

Vendor Product Version Raw CPE
intel ax210_firmware < 22.40 cpe:2.3:o:intel:ax210_firmware:*:*:*:*:*:*:*:*
intel ax201_firmware < 22.40 cpe:2.3:o:intel:ax201_firmware:*:*:*:*:*:*:*:*
intel ax200_firmware < 22.40 cpe:2.3:o:intel:ax200_firmware:*:*:*:*:*:*:*:*
intel ac_9560_firmware < 22.40 cpe:2.3:o:intel:ac_9560_firmware:*:*:*:*:*:*:*:*
intel ac_9462_firmware < 22.40 cpe:2.3:o:intel:ac_9462_firmware:*:*:*:*:*:*:*:*
intel ac_9461_firmware < 22.40 cpe:2.3:o:intel:ac_9461_firmware:*:*:*:*:*:*:*:*
intel ac_9260_firmware < 22.40 cpe:2.3:o:intel:ac_9260_firmware:*:*:*:*:*:*:*:*
intel ac_8265_firmware < 22.40 cpe:2.3:o:intel:ac_8265_firmware:*:*:*:*:*:*:*:*
intel ac_8260_firmware < 22.40 cpe:2.3:o:intel:ac_8260_firmware:*:*:*:*:*:*:*:*
intel ac_3168_firmware < 22.40 cpe:2.3:o:intel:ac_3168_firmware:*:*:*:*:*:*:*:*
intel 7265_firmware < 22.40 cpe:2.3:o:intel:7265_firmware:*:*:*:*:*:*:*:*
intel ac_3165_firmware < 22.40 cpe:2.3:o:intel:ac_3165_firmware:*:*:*:*:*:*:*:*
intel ax1675_firmware < 2.4.1541 cpe:2.3:o:intel:ax1675_firmware:*:*:*:*:*:*:*:*
intel ax1650_firmware < 2.4.1541 cpe:2.3:o:intel:ax1650_firmware:*:*:*:*:*:*:*:*
intel ac1550_firmware < 2.4.1541 cpe:2.3:o:intel:ac1550_firmware:*:*:*:*:*:*:*:*

References for CVE-2021-0063

cvelogic Threat Intelligence