How severe is CVE-2021-0053?

CVE-2021-0053 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-0053 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-0053?

CVE-2021-0053 primarily affects Intel Ax210 Firmware. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-0053?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-0053 published?

CVE-2021-0053 was published on 2021-11-17 and last updated on 2026-06-17.

CVE-2021-0053

CVE-2021-0053 is a medium-severity vulnerability in Intel Ax210 Firmware with a CVSS 3.x base score of 5.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-665.

Key facts

Severity: Medium (CVSS 3.x base score 5.7)
CVSS v2: 2.7
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-665
Affected product: Intel Ax210 Firmware
Published: 2021-11-17
Last modified: 2026-06-17

Description

Improper initialization in firmware for some Intel(R) PROSet/Wireless WiFi and Killer(TM) WiFi in Windows 10 may allow an authenticated user to potentially enable information disclosure via adjacent access.

Frequently asked questions

What is CVE-2021-0053?: Improper initialization in firmware for some Intel(R) PROSet/Wireless WiFi and Killer(TM) WiFi in Windows 10 may allow an authenticated user to potentially enable information disclosure via adjacent access.
How severe is CVE-2021-0053?: CVE-2021-0053 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-0053 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-0053?: CVE-2021-0053 primarily affects Intel Ax210 Firmware. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-0053?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-0053 published?: CVE-2021-0053 was published on 2021-11-17 and last updated on 2026-06-17.

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00509.html

Affected products (15)

cpe:2.3:o:intel:ax210_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:ax201_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:ax200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:ac_9560_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:ac_9462_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:ac_9461_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:ac_9260_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:ac_8265_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:ac_8260_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:ac_3168_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:7265_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:ac_3165_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:ax1675_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:ax1650_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:ac1550_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Intel Ax210 Firmware

CVE-2021-0071 — High (CVSS 8.8): Improper input validation in firmware for some Intel(R) PROSet/Wireless WiFi in UEFI may allow an unauthenticated user…
CVE-2021-33113 — High (CVSS 8.1): Improper input validation for some Intel(R) PROSet/Wireless WiFi in multiple operating systems and Killer(TM) WiFi in…
CVE-2021-0078 — High (CVSS 8.1): Improper input validation in software for some Intel(R) PROSet/Wireless WiFi and Killer(TM) WiFi in Windows 10 may…
CVE-2021-0151 — High (CVSS 7.8): Improper access control in the installer for some Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products…
CVE-2021-0082 — High (CVSS 7.8): Uncontrolled search path in software installer for Intel(R) PROSet/Wireless WiFi in Windows 10 may allow an…
CVE-2021-0065 — High (CVSS 7.8): Incorrect default permissions in the Intel(R) PROSet/Wireless WiFi software installer for Windows 10 before version…

All CVEs affecting Intel Ax210 Firmware →

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Browse all CWE-665 (Improper Initialization) vulnerabilities →