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CVE-2021-3917

5.5 mediumEPSS 0.2%

Medium (5.5) in redhat coreos-installer. EPSS 0.2% chance of exploitation in the next 30 days. Fixed in coreos-installer 0.10.0.

A flaw was found in the coreos-installer, where it writes the Ignition config to the target system with world-readable access permissions. This flaw allows a local attacker to have read access to potentially sensitive data. The highest threat from this vulnerability is to confidentiality.

Severity

CVSS 3.1

5.5 medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-31)
CWE
CWE-276
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-862g-9h5m-m3qvcrates.iocoreos-installer<0.10.00.10.0

References

Check your stackJSON