PatchTheCVECVE-2020-35928: An issue was discovered in the concread crate before 0.2.6 for Rust
CVE-2020-35928 is a medium-severity flaw (CVSS 4.7) affecting concread. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An issue was discovered in the concread crate before 0.2.6 for Rust. Attackers can cause an ARCache<K,V> data race by sending types that do not implement Send/Sync.
Why this priority
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.7 (Medium) |
| Attack vector | Local |
| Attack complexity | High |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.2% (top 84%) |
| CISA exploited list | No |
| Weakness | CWE-362 |
| Published | 2020-12-31 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
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-2020-35928?
concread: upgrade to 0.2.6. Exact commands for each OS are on this page.
Is CVE-2020-35928 being exploited?
CVE-2020-35928 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-2020-35928 affect?
CVE-2020-35928 affects concread. Severity is medium (CVSS 4.7). An issue was discovered in the concread crate before 0.2.6 for Rust. Attackers can cause an ARCache<K,V> data race by sending types that do not implement Send/Sync.
How urgent is CVE-2020-35928?
Priority 25/100. Public exploit reference