CVE-2021-44545

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

Published: 2022-08-18 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-44545 is rated Low Risk (38.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.46%). 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-2021-44545

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 2026-06-15 0.23% 0.46% +0.23%
2 2026-06-04 0.49% 0.23% -0.26%
3 2026-04-04 — 0.49% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-44545

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]
6.5 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 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2021-44545

OS Trackers for CVE-2021-44545

vendor priority summary link
debian not yet assigned CVE-2021-44545 not yet assigned priority: Debian including 1 source packages (firmware-nonfree), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. https://security-tracker.debian.org/tracker/CVE-2021-44545

Affected software / configurations for CVE-2021-44545

Vendor Product Version Raw CPE
intel killer_ac_1550_firmware < 3.1122.1105 cpe:2.3:o:intel:killer_ac_1550_firmware:*:*:*:*:*:*:*:*
intel killer_wi-fi_6_ax1650_firmware < 3.1122.1105 cpe:2.3:o:intel:killer_wi-fi_6_ax1650_firmware:*:*:*:*:*:*:*:*
intel killer_wi-fi_6e_ax1690_firmware < 3.1122.1105 cpe:2.3:o:intel:killer_wi-fi_6e_ax1690_firmware:*:*:*:*:*:*:*:*
intel killer_wi-fi_6e_ax1675_firmware < 3.1122.1105 cpe:2.3:o:intel:killer_wi-fi_6e_ax1675_firmware:*:*:*:*:*:*:*:*
intel proset_wi-fi_6e_ax210_firmware < 22.120 cpe:2.3:o:intel:proset_wi-fi_6e_ax210_firmware:*:*:*:*:*:*:*:*
intel wi-fi_6e_ax211_firmware < 22.120 cpe:2.3:o:intel:wi-fi_6e_ax211_firmware:*:*:*:*:*:*:*:*
intel wi-fi_6_ax200_firmware < 22.120 cpe:2.3:o:intel:wi-fi_6_ax200_firmware:*:*:*:*:*:*:*:*
intel wi-fi_6_ax201_firmware < 22.120 cpe:2.3:o:intel:wi-fi_6_ax201_firmware:*:*:*:*:*:*:*:*
intel wi-fi_6e_ax411_firmware < 22.120 cpe:2.3:o:intel:wi-fi_6e_ax411_firmware:*:*:*:*:*:*:*:*

References for CVE-2021-44545

cvelogic Threat Intelligence