What’s Vulnerable › Vulnerabilities

CVE-2021-45720

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-12-26 · updated 2026-06-17
• Weakness: CWE-416

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.

Affected products

• Lru Project Lru: before 0.7.1 — fixed in 0.7.1

How to fix

Upgrade to a fixed version: Lru Project Lru 0.7.1. Check the vendor advisory for mitigations.

References

• https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/lru/RUSTSEC-2021-0130.md
• https://rustsec.org/advisories/RUSTSEC-2021-0130.html
• https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/lru/RUSTSEC-2021-0130.md
• https://rustsec.org/advisories/RUSTSEC-2021-0130.html

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