CVE-2020-7666
CVSS v3
7.5
HIGH
EPSS Score
1.5 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
This affects all versions of package github.com/u-root/u-root/pkg/cpio. It is vulnerable to leading, non-leading relative path traversal attacks and symlink based (relative and absolute) path traversal attacks in cpio file extraction.
Technical details
- Published
- 2020-09-01
Frequently asked questions
What is CVE-2020-7666?
This affects all versions of package github.com/u-root/u-root/pkg/cpio. It is vulnerable to leading, non-leading relative path traversal attacks and symlink based (relative and absolute) path traversal attacks in cpio file extraction.
Is CVE-2020-7666 actively exploited?
Active exploitation of CVE-2020-7666 has not been confirmed. Its EPSS score was 1.5% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2020-7666?
CVE-2020-7666 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2020-7666 affecting your environment?
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