CVE-2021-26258: Improper access control for the Intel(R) Killer(TM) Control Center software before version 2.4.3337.0 may allo

Q: How do I fix CVE-2021-26258?

killer control center: upgrade to 2.4.3337.0. Exact commands for each OS are on this page.

Q: Is CVE-2021-26258 being exploited?

CVE-2021-26258 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-26258 affect?

CVE-2021-26258 affects killer control center. Severity is high (CVSS 7.8). 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.

This month

HIGH 7.8UPGRADE

CVE-2021-26258 is a high-severity flaw (CVSS 7.8) affecting killer control center. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Published	2022-05-12
Last modified	2026-06-17

Publisher (CNA): Intel Corporation · Vendor: intel

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-05-12 17:15 UTCPublished CVE record published
2026-06-17 03:43 UTCUpdated Record last modified

intel killer control center UPGRADE

Affected: < 2.4.3337.0

Fixed in: 2.4.3337.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy killer-control-center || rpm -q killer-control-center || killer-control-center --version

2. UPGRADE to 2.4.3337.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade killer-control-center

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade killer-control-center

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-26258?

killer control center: upgrade to 2.4.3337.0. Exact commands for each OS are on this page.

Is CVE-2021-26258 being exploited?

CVE-2021-26258 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-26258 affect?

CVE-2021-26258 affects killer control center. Severity is high (CVSS 7.8). 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 urgent is CVE-2021-26258?

Priority 40/100. High severity

Software pages

Intel vulnerabilities

Related CVEs

CVE-2019-15665 HIGH 7.2 UPGRADE An issue was discovered in Rivet Killer Control Center before 2.1.1352
CVE-2019-15664 LOW 2.7 UPGRADE An issue was discovered in Rivet Killer Control Center before 2.1.1352
CVE-2019-15663 LOW 2.7 UPGRADE An issue was discovered in Rivet Killer Control Center before 2.1.1352
CVE-2019-15662 LOW 2.7 UPGRADE An issue was discovered in Rivet Killer Control Center before 2.1.1352
CVE-2019-15661 HIGH 7.2 UPGRADE An issue was discovered in Rivet Killer Control Center before 2.1.1352

References

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