An issue was discovered in the flatbuffers crate through 2020-04-11 for Rust.
Priority LOW 34CWE-704Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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-704 and the CVSS impact.
Summary
An issue was discovered in the flatbuffers crate through 2020-04-11 for Rust. read_scalar (and read_scalar_at) can transmute values without unsafe blocks.
Why it matters now
EPSS 0.00591 48th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed flatbuffers (crates.io): 2.0.0
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 |
| — | flatbuffers (crates.io) | 0.4.0 to before 2.0.0 | 2.0.0 | Patch available | GHSA-c9h5-hf8r-m97x |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- flatbuffers (crates.io) Vendor— Affected 0.4.0 to before 2.0.0 Fixed in 2.0.0 Patch available GHSA-c9h5-hf8r-m97x
Remediation
- Fix · GHSA-c9h5-hf8r-m97x flatbuffers (crates.io) Fixed in 2.0.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-35864
- 2026-10-03 Alias added: GHSA-c9h5-hf8r-m97x
References
More Google Flatbuffers vulnerabilities
- TI-2019-15145 An issue was discovered in the flatbuffers crate before 0.6.1 for Rust. CVSS 3.1CRITICAL 9.8
Sources
- CVE-2020-35864 · CVE Program
- CVE-2020-35864 · NVD
- FIRST EPSS
- GHSA-c9h5-hf8r-m97x · GitHub Advisory Database · CC BY 4.0
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