How severe is CVE-2020-0557?

CVE-2020-0557 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-0557 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-0557?

CVE-2020-0557 affects Intel Proset/wireless Wifi. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-0557?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-0557 published?

CVE-2020-0557 was published on 2020-04-15 and last updated on 2026-06-17.

CVE-2020-0557

CVE-2020-0557 is a high-severity vulnerability in Intel Proset/wireless Wifi with a CVSS 3.x base score of 7.8. 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-732.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Intel Proset/wireless Wifi
Published: 2020-04-15
Last modified: 2026-06-17

Description

Insecure inherited permissions in Intel(R) PROSet/Wireless WiFi products before version 21.70 on Windows 10 may allow an authenticated user to potentially enable escalation of privilege via local access.

Frequently asked questions

What is CVE-2020-0557?: Insecure inherited permissions in Intel(R) PROSet/Wireless WiFi products before version 21.70 on Windows 10 may allow an authenticated user to potentially enable escalation of privilege via local access.
How severe is CVE-2020-0557?: CVE-2020-0557 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-0557 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-0557?: CVE-2020-0557 affects Intel Proset/wireless Wifi. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-0557?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-0557 published?: CVE-2020-0557 was published on 2020-04-15 and last updated on 2026-06-17.

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00338.html

Affected products (1)

cpe:2.3:a:intel:proset\/wireless_wifi:*:*:*:*:*:*:*:*

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