CVE-2021-29936
Free of uninitialized memory in adtensor
An issue was discovered in the adtensor crate through 2021-01-11 for Rust. There is a drop of uninitialized memory via the FromIterator implementation for Vector and Matrix.
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 adtensor crate through 2021-01-11 for Rust. There is a drop of uninitialized memory via the FromIterator implementation for Vector and Matrix.
- Record
CVE-2021-29936- 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 - Weakness
- CWE-908
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in the adtensor crate through 2021-01-11 for Rust. There is a drop of uninitialized memory via the FromIterator implementation for Vector and Matrix.
- Record
CVE-2021-29936- Updated
- 2026-11-02
EUVDEUVD-2021-1867 No score
An issue was discovered in the adtensor crate through 2021-01-11 for Rust. There is a drop of uninitialized memory via the FromIterator implementation for Vector and Matrix.
- Record
EUVD-2021-1867- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rg4m-gww5-7p47
Free of uninitialized memory in adtensor
An issue was discovered in the adtensor crate through 0.0.3 for Rust. There is a drop of uninitialized memory via the FromIterator implementation for Vector and Matrix.
- Record
GHSA-rg4m-gww5-7p47- 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-908
- Updated
- 2026-11-02
OSVGHSA-rg4m-gww5-7p47
Free of uninitialized memory in adtensor
An issue was discovered in the adtensor crate through 0.0.3 for Rust. There is a drop of uninitialized memory via the FromIterator implementation for Vector and Matrix.
- Record
GHSA-rg4m-gww5-7p47- 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-908
- Updated
- 2026-11-02
OSVRUSTSEC-2021-0045
FromIterator implementation for Vector/Matrix can drop uninitialized memory
The FromIterator<T> methods for Vector and Matrix rely on the type
parameter N to allocate space in the iterable.
If the passed in N type parameter is larger than the number of items returned
by the iterator, it can lead to uninitialized memory being left in the
Vector or Matrix type which gets dropped.
- Record
RUSTSEC-2021-0045- 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 |
|---|---|---|
| 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-2021-29936 is a critical vulnerability (CVSS 9.8) in Adtensor Project Adtensor, published January 11, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.37%, the 72nd percentile. No source names a fixed version.