CVE-2020-25573

highpriority · track · 40EPSS 0.018 · 79 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.83% (79th) EPSS

CVSS 7.5 · high

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-824USprimaryCWE-824US

affected products (4)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
linked-hash-map project linked-hash-map< 0.5.3nvdUScpe:2.3:a:linked-hash-map_project:linked-hash-map:*:*:*:*:*:*:*:*
crates.io linked-hash-map< 0.5.3osvUSpkg:cargo/linked-hash-map
crates.io linked-hash-map0.0.0-0 → 0.5.3osvUSpkg:cargo/linked-hash-map

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-r43h-gmrm-h5c9Access of Uninitialized Pointer in linked-hash-map2021-08-25ghsa · osvUS
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.
RUSTSEC-2020-0026linked-hash-map creates uninitialized NonNull pointer2020-06-23vendor · osvUS
Affected versions of this crate called `mem::uninitialized()` to create a `NonNull<T>`, which is undefined behavior. The flaw was corrected by avoiding the use of `mem::uninitialized()`.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

published 2020-09-14modified 2026-06-17

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+454 more

references (7)

External citations — patches, advisories, analysis.

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