CVE-2021-29940
CVSS v3
9.8
CRITICAL
EPSS Score
1.3 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An issue was discovered in the through crate through 2021-02-18 for Rust. There is a double free (in through and through_and) upon a panic of the map function.
Technical details
- Published
- 2021-04-01
Frequently asked questions
What is CVE-2021-29940?
An issue was discovered in the through crate through 2021-02-18 for Rust. There is a double free (in through and through_and) upon a panic of the map function.
Is CVE-2021-29940 actively exploited?
Active exploitation of CVE-2021-29940 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-2021-29940?
CVE-2021-29940 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-29940 affecting your environment?
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