How severe is CVE-2021-26258?

CVE-2021-26258 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-2021-26258 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-26258?

CVE-2021-26258 affects Intel Killer Control Center. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-26258?

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-2021-26258 published?

CVE-2021-26258 was published on 2022-05-12 and last updated on 2026-06-17.

CVE-2021-26258

CVE-2021-26258 is a high-severity vulnerability in Intel Killer Control Center 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.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Intel Killer Control Center
Published: 2022-05-12
Last modified: 2026-06-17

Description

Improper access control for the Intel(R) Killer(TM) Control Center software before version 2.4.3337.0 may allow an authorized user to potentially enable escalation of privilege via local access.

Frequently asked questions

What is CVE-2021-26258?: Improper access control for the Intel(R) Killer(TM) Control Center software before version 2.4.3337.0 may allow an authorized user to potentially enable escalation of privilege via local access.
How severe is CVE-2021-26258?: CVE-2021-26258 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-2021-26258 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26258?: CVE-2021-26258 affects Intel Killer Control Center. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-26258?: 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-2021-26258 published?: CVE-2021-26258 was published on 2022-05-12 and last updated on 2026-06-17.

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00644.html

Affected products (1)

cpe:2.3:a:intel:killer_control_center:*:*:*:*:*:*:*:*