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CVE-2020-35927: An issue was discovered in the thex crate through 2020-12-08 for Rust

25
Routine
MEDIUM 5.5UPGRADE

CVE-2020-35927 is a medium-severity flaw (CVSS 5.5) affecting thex. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in the thex crate through 2020-12-08 for Rust. Thex<T> allows cross-thread data races of non-Send types.

Why this priority

  • No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score5.5 (Medium)
Attack vectorLocal
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance0.3% (top 76%)
CISA exploited listNo
Published2020-12-31
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: thex project

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

thex project thex UPGRADE
Affected: <= 2020-12-08
Fixed in: newer than 2020-12-08
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy thex || rpm -q thex || thex --version
2. UPGRADE to newer than 2020-12-08 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade thex
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade thex
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-35927?

thex: upgrade to newer than 2020-12-08. Exact commands for each OS are on this page.

Is CVE-2020-35927 being exploited?

CVE-2020-35927 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-35927 affect?

CVE-2020-35927 affects thex. Severity is medium (CVSS 5.5). An issue was discovered in the thex crate through 2020-12-08 for Rust. Thex<T> allows cross-thread data races of non-Send types.

How urgent is CVE-2020-35927?

Priority 25/100. No elevated risk signals yet.

References

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