An issue was discovered in the dync crate before 0.5.0 for Rust.
Priority LOW 25CWE-125Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-125 and the CVSS impact.
Summary
An issue was discovered in the dync crate before 0.5.0 for Rust. VecCopy allows misaligned element access because u8 is not always the type in question.
Why it matters now
EPSS 0.00379 32nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed dync (crates.io): 0.5.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | dync (crates.io) | before 0.5.0 | 0.5.0 | Patch available | GHSA-qxjq-v4wf-ppvh |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- dync (crates.io) Vendor— Affected before 0.5.0 Fixed in 0.5.0 Patch available GHSA-qxjq-v4wf-ppvh
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:dync_project:dync:*:*:*:*:*:rust:*:* | before 0.5.0 | Vulnerable | Dync Project |
- cpe:2.3:a:dync_project:dync:*:*:*:*:*:rust:*:* Versions before 0.5.0 Vulnerable ·Dync Project
Remediation
- Fix · GHSA-qxjq-v4wf-ppvh dync (crates.io) Fixed in 0.5.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-35903
- 2026-10-03 Alias added: GHSA-qxjq-v4wf-ppvh
References
Sources
- CVE-2020-35903 · CVE Program
- CVE-2020-35903 · NVD
- FIRST EPSS
- GHSA-qxjq-v4wf-ppvh · GitHub Advisory Database · CC BY 4.0
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