CVE-2021-38187

highpriority · track · 40EPSS 0.014 · 73 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.44% (73rd) 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 anymap crate through 0.12.1 for Rust. It violates soundness via conversion of a *u8 to a *u64.

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-681USprimaryCWE-681USCWE-704US

affected products (4)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
anymap project anymap≤ 0.12.1nvdUScpe:2.3:a:anymap_project:anymap:*:*:*:*:*:*:*:*
crates.io anymap≤ 0.12.1osvUSpkg:cargo/anymap
crates.io anymap≥ 0.0.0-0osvUSpkg:cargo/anymap

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-hc92-9h3m-c39jIncorrect cast in anymap2021-08-25ghsa · osvUS
An issue was discovered in the anymap crate through 0.12.1 for Rust. It violates soundness via conversion of a *u8 to a *u64.
RUSTSEC-2021-0065anymap is unmaintained.2021-05-07vendor · osvUS
The `anymap` crate does not appear to be maintained, and the most recent published version 0.12.1 includes a soundness bug. This has been [fixed](https://github.com/chris-morgan/anymap/pull/32) a few years ago, but was never released.

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 2021-08-08modified 2026-06-17

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+173 more

references (6)

External citations — patches, advisories, analysis.

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