PatchTheCVECVE-2020-36219: An issue was discovered in the atomic-option crate through 2020-10-31 for Rust
CVE-2020-36219 is a medium-severity flaw (CVSS 5.9) affecting atomic-option. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An issue was discovered in the atomic-option crate through 2020-10-31 for Rust. Because AtomicOption<T> implements Sync unconditionally, a data race can occur.
Why this priority
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.9 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.1% (top 34%) |
| CISA exploited list | No |
| Published | 2021-01-26 |
| 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-2020-36219?
atomic-option: upgrade to newer than 2020-10-31. Exact commands for each OS are on this page.
Is CVE-2020-36219 being exploited?
CVE-2020-36219 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-2020-36219 affect?
CVE-2020-36219 affects atomic-option. Severity is medium (CVSS 5.9). An issue was discovered in the atomic-option crate through 2020-10-31 for Rust. Because AtomicOption<T> implements Sync unconditionally, a data race can occur.
How urgent is CVE-2020-36219?
Priority 47/100. Public exploit reference; Remotely exploitable, no login, no user action