VulnerabilityModified
CVE-2017-20004
MutexGuards can be used across threads with any types, allowing for memory safety issues through race conditions.
MEDIUM 5.9EPSS 0.80%
Does this matter?
Lower severity and a low EPSS score (0.80%). Track it; it rarely justifies an emergency change on its own.
Description
In the standard library in Rust before 1.19.0, there is a synchronization problem in the MutexGuard object. MutexGuards can be used across threads with any types, allowing for memory safety issues through race conditions.
- CVSS 3.1
- 5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 0.80% probability · 56th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Affected
- rust-lang/rust
- Source
- cve@mitre.org
EPSS 0.8% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/rust-lang/rust/issues/41622Patch, Third Party Advisory
- https://github.com/rust-lang/rust/pull/41624Patch, Third Party Advisory
- https://github.com/rust-lang/rust/issues/41622Patch, Third Party Advisory
- https://github.com/rust-lang/rust/pull/41624Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.