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CVE-2026-6484: In an UEFI, Lack of verified boot to certain FV may cause arbitrary code execution.

36
Routine
HIGH 8.2

CVE-2026-6484 is a high-severity flaw (CVSS 8.2) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In an UEFI, Lack of verified boot to certain FV may cause arbitrary code execution.

Why this priority

  • High severity

A fixed release or distro patch exists.

Risk facts

CVSS score8.2 (High)
Attack vectorLocal
Attack complexityLow
Privileges neededHigh
User interactionNone
EPSS exploit chance0.4% (top 70%)
CISA exploited listNo
WeaknessCWE-1277
Published2026-08-12
Last modified2026-10-23
Publisher (CNA): Insyde

Last updated 2026-10-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

Exact fixes by distribution

Fedora 46 · clementine · FIXED · 1.4.2-1.fc46 · FEDORA-2026-3e748ef4d3 · source
sudo dnf upgrade --advisory=FEDORA-2026-3e748ef4d3
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-2026-6484?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-6484 being exploited?

CVE-2026-6484 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-2026-6484 affect?

CVE-2026-6484 affects affected software. Severity is high (CVSS 8.2). In an UEFI, Lack of verified boot to certain FV may cause arbitrary code execution.

How urgent is CVE-2026-6484?

Priority 36/100. High severity

References

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