CVE-2020-25573 json
Access of Uninitialized Pointer in linked-hash-map
published 2020-06-23 6 y ago modified 2026-06-17 4 mo ago also GHSA-r43h-gmrm-h5c9 , RUSTSEC-2020-0026 , EUVD-2021-1854
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 0
- none known
Summary
An issue was discovered in the linked-hash-map crate before 0.5.3 for Rust. It creates an uninitialized NonNull pointer, which violates a non-null constraint.
Patch / fix
- crates.io linked-hash-map 0.5.3
- linked-hash-map_project linked-hash-map 0.5.3
- rust-linked-hash-map Debian 14, Debian 13, Debian 12 0.5.4-1
debian advisories DEBIAN-CVE-2020-25573
Exploit prediction
1.83% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/contain-rs/linked-hash-map/pull/100 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | linked-hash-map | <0.5.3 >=0.0.0-0, <0.5.3 |
0.5.3 |
Classification
- Weakness
-
- CWE-824 Access of Uninitialized Pointer
References
-
github.com
/contain-rs/linked-hash-map/pull/100
web, exploit, third-party-advisory
-
rustsec.org
/advisories/RUSTSEC-2020-0026.html
web, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-25573
advisory
-
github.com
/contain-rs/linked-hash-map
package
-
crates.io
/crates/linked-hash-map
package
Sources
- CVE List CVE-2020-25573
- GitHub Advisory GHSA-r43h-gmrm-h5c9
- NVD CVE-2020-25573
- OSV RUSTSEC-2020-0026
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