CVE-2021-37847
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
crypto/digest.c in Pengutronix barebox through 2021.07.0 leaks timing information because memcmp is used during digest verification.
Technical details
- Published
- 2021-08-02
Frequently asked questions
What is CVE-2021-37847?
crypto/digest.c in Pengutronix barebox through 2021.07.0 leaks timing information because memcmp is used during digest verification.
Is CVE-2021-37847 actively exploited?
Active exploitation of CVE-2021-37847 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-2021-37847?
CVE-2021-37847 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2021-37847 affecting your environment?
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