CVE-2021-45720
CVSS v3
7.5
HIGH
EPSS Score
1.2 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An issue was discovered in the lru crate before 0.7.1 for Rust. The iterators have a use-after-free, as demonstrated by an access after a pop operation.
Technical details
- Published
- 2021-12-26
Frequently asked questions
What is CVE-2021-45720?
An issue was discovered in the lru crate before 0.7.1 for Rust. The iterators have a use-after-free, as demonstrated by an access after a pop operation.
Is CVE-2021-45720 actively exploited?
Active exploitation of CVE-2021-45720 has not been confirmed. Its EPSS score was 1.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-45720?
CVE-2021-45720 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2021-45720 affecting your environment?
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