CVE-2021-45706

highpriority · track · 39EPSS 0.012 · 69 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.23% (69th) 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 2026-10-26

An issue was discovered in the zeroize_derive crate before 1.1.1 for Rust. Dropped memory is not zeroed out for an enum.

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-459USprimaryCWE-459US

affected products (4)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
zeroize derive project zeroize derive< 1.1.1nvdUScpe:2.3:a:zeroize_derive_project:zeroize_derive:*:*:*:*:*:*:*:*
crates.io zeroize_derive< 1.1.1osvUSpkg:cargo/zeroize_derive
crates.io zeroize_derive0.0.0-0 → 1.1.1osvUSpkg:cargo/zeroize_derive

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-c5hx-w945-j4pqMemory flaw in zeroize_derive2022-01-06ghsa · osvUS
An issue was discovered in the zeroize_derive crate before 1.1.1 for Rust. Dropped memory is not zeroed out for an enum.
RUSTSEC-2021-0115`#[zeroize(drop)]` doesn't implement `Drop` for `enum`s2021-09-24vendor · osvUS
Affected versions of this crate did not implement `Drop` when `#[zeroize(drop)]` was used on an `enum`. This can result in memory not being zeroed out after dropping it, which is exactly what is intended when adding this attribute. The flaw was corrected in version 1.2 and `#[zeroize(drop)]` on `enum`s now properly implements `Drop`.

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 2021-12-27modified 2026-06-17

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references (6)

External citations — patches, advisories, analysis.

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