CVE-2015-20001

mediumpriority · track · 30EPSS 0.013 · 71 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.32% (71st) EPSS

CVSS 5 · medium

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

In the standard library in Rust before 1.2.0, BinaryHeap is not panic-safe. The binary heap is left in an inconsistent state when the comparison of generic elements inside sift_up or sift_down_range panics. This bug leads to a drop of zeroed memory as an arbitrary type, which can result in a memory safety violation.

cvss

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

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-119USprimary

affected products (2)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
rust-lang rust< 1.2.0nvdUScpe:2.3:a:rust-lang:rust:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2021-04-11modified 2026-06-17

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+21039 more

references (8)

External citations — patches, advisories, analysis.

https://github.com/rust-lang/rustPatchcnnvd
https://github.com/rust-lang/rust/issues/25842 cnnvd
https://github.com/rust-lang/rust/pull/25856 cnnvd
https://nvd.nist.gov/vuln/detail/CVE-2015-20001 cnnvd
https://github.com/rust-lang/rust/issues/25842 enisa_euvd
https://github.com/rust-lang/rust/pull/25856 enisa_euvd
https://github.com/rust-lang/rust/issues/25842ExploitIssue TrackingPatchThird Party Advisorynvd
https://github.com/rust-lang/rust/pull/25856Issue TrackingPatchThird Party Advisorynvd

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