How severe is CVE-2021-29933?

CVE-2021-29933 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-29933 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-29933?

CVE-2021-29933 affects Insert Many Project Insert Many. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-29933?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-29933 published?

CVE-2021-29933 was published on 2021-04-01 and last updated on 2026-06-17.

CVE-2021-29933

CVE-2021-29933 is a high-severity vulnerability in Insert Many Project Insert Many with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-415.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-415
Affected product: Insert Many Project Insert Many
Published: 2021-04-01
Last modified: 2026-06-17

Description

An issue was discovered in the insert_many crate through 2021-01-26 for Rust. Elements may be dropped twice if a .next() method panics.

Frequently asked questions

What is CVE-2021-29933?: An issue was discovered in the insert_many crate through 2021-01-26 for Rust. Elements may be dropped twice if a .next() method panics.
How severe is CVE-2021-29933?: CVE-2021-29933 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-29933 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-29933?: CVE-2021-29933 affects Insert Many Project Insert Many. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-29933?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-29933 published?: CVE-2021-29933 was published on 2021-04-01 and last updated on 2026-06-17.

References

https://rustsec.org/advisories/RUSTSEC-2021-0042.html

Affected products (1)

cpe:2.3:a:insert_many_project:insert_many:*:*:*:*:*:rust:*:*

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