CVE-2021-40401
CVSS v3
8.6
HIGH
EPSS Score
1.3 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A use-after-free vulnerability exists in the RS-274X aperture definition tokenization functionality of Gerbv 2.7.0 and dev (commit b5f1eacd) and Gerbv forked 2.7.1. A specially-crafted gerber file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.
Technical details
- Published
- 2022-02-04
Frequently asked questions
What is CVE-2021-40401?
A use-after-free vulnerability exists in the RS-274X aperture definition tokenization functionality of Gerbv 2.7.0 and dev (commit b5f1eacd) and Gerbv forked 2.7.1. A specially-crafted gerber file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.
Is CVE-2021-40401 actively exploited?
Active exploitation of CVE-2021-40401 has not been confirmed. Its EPSS score was 1.3% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-40401?
CVE-2021-40401 has a CVSS v3 base score of 8.6 (HIGH severity).
Is CVE-2021-40401 affecting your environment?
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