What is CVE-2020-35874?

CVE-2020-35874 is a high-severity vulnerability in Internment Project, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 8.1/10. Published 2020-12-31.

How severe is CVE-2020-35874?

High severity. CVSS v3 base score is 8.1 out of 10.

Is CVE-2020-35874 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Use After Free in Internment Project

CVE-2020-35874

An issue was discovered in the internment crate through 2020-05-28 for Rust. ArcIntern::drop has a race condition and resultant use-after-free.

Vulnerability class: Race Condition

Published 2020-12-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (60.5th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: +0.000

Affected products

Internment Project — versions 0.3.12

Weakness classification (CWE)

Public proof-of-concept exploits

Artisan-Lab/Rust-memory-safety-bugs

References

rustsec.org/advisories/RUSTSEC-2020-0017.html (Exploit, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2020-35874?: CVE-2020-35874 is a high-severity vulnerability in Internment Project, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 8.1/10. Published 2020-12-31.
How severe is CVE-2020-35874?: High severity. CVSS v3 base score is 8.1 out of 10.
Is CVE-2020-35874 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.