How severe is CVE-2020-35900?

CVE-2020-35900 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-35900 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-35900?

CVE-2020-35900 affects Array-queue Project Array-queue. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-35900?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-35900 published?

CVE-2020-35900 was published on 2020-12-31 and last updated on 2026-06-17.

CVE-2020-35900

CVE-2020-35900 is a medium-severity vulnerability in Array-queue Project Array-queue with a CVSS 3.x base score of 5.5. 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-416.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Array-queue Project Array-queue
Published: 2020-12-31
Last modified: 2026-06-17

Description

An issue was discovered in the array-queue crate through 2020-09-26 for Rust. A pop_back() call may lead to a use-after-free.

Frequently asked questions

What is CVE-2020-35900?: An issue was discovered in the array-queue crate through 2020-09-26 for Rust. A pop_back() call may lead to a use-after-free.
How severe is CVE-2020-35900?: CVE-2020-35900 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-35900 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-35900?: CVE-2020-35900 affects Array-queue Project Array-queue. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-35900?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-35900 published?: CVE-2020-35900 was published on 2020-12-31 and last updated on 2026-06-17.

References

https://rustsec.org/advisories/RUSTSEC-2020-0047.html

Affected products (1)

cpe:2.3:a:array-queue_project:array-queue:*:*:*:*:*:rust:*:*

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