CVE-2020-35880
Unsoundness in bigint
An issue was discovered in the bigint crate through 2020-05-07 for Rust. It allows a soundness violation.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
An issue was discovered in the bigint crate through 2020-05-07 for Rust. It allows a soundness violation.
- Record
CVE-2020-35880- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
An issue was discovered in the bigint crate through 2020-05-07 for Rust. It allows a soundness violation.
- Record
CVE-2020-35880- Updated
- 2026-11-02
EUVDEUVD-2021-1916 No score
An issue was discovered in the bigint crate through 2020-05-07 for Rust. It allows a soundness violation.
- Record
EUVD-2021-1916- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wgx2-6432-j3fw
Unsoundness in bigint
An issue was discovered in the bigint crate through 2020-05-07 for Rust. It allows a soundness violation.
- Record
GHSA-wgx2-6432-j3fw- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-704
- Updated
- 2026-11-02
OSVGHSA-wgx2-6432-j3fw
Unsoundness in bigint
An issue was discovered in the bigint crate through 2020-05-07 for Rust. It allows a soundness violation.
- Record
GHSA-wgx2-6432-j3fw- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-704
- Updated
- 2026-11-02
OSVRUSTSEC-2020-0025
bigint is unmaintained, use uint instead
The bigint crate is not maintained any more and contains several known bugs (including a soundness bug);
use uint instead.
- Record
RUSTSEC-2020-0025- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-35880 is a critical vulnerability (CVSS 9.8) in Bigint Project Bigint, published May 7, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.53%, the 75th percentile. No source names a fixed version.