How severe is CVE-2020-36452?

CVE-2020-36452 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-36452 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-36452?

CVE-2020-36452 affects Array-tools Project Array-tools. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-36452?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-36452 published?

CVE-2020-36452 was published on 2021-08-08 and last updated on 2026-06-17.

CVE-2020-36452

CVE-2020-36452 is a critical-severity vulnerability in Array-tools Project Array-tools with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-908.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-908
Affected product: Array-tools Project Array-tools
Published: 2021-08-08
Last modified: 2026-06-17

Description

An issue was discovered in the array-tools crate before 0.3.2 for Rust. FixedCapacityDequeLike::clone() has a drop of uninitialized memory.

Frequently asked questions

What is CVE-2020-36452?: An issue was discovered in the array-tools crate before 0.3.2 for Rust. FixedCapacityDequeLike::clone() has a drop of uninitialized memory.
How severe is CVE-2020-36452?: CVE-2020-36452 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-36452 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-36452?: CVE-2020-36452 affects Array-tools Project Array-tools. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-36452?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-36452 published?: CVE-2020-36452 was published on 2021-08-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:array-tools_project:array-tools:*:*:*:*:*:rust:*:*

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