How severe is CVE-2021-29932?

CVE-2021-29932 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-2021-29932 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-29932?

CVE-2021-29932 affects Parse Duration Project Parse Duration. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-29932?

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-2021-29932 published?

CVE-2021-29932 was published on 2021-04-01 and last updated on 2026-06-17.

CVE-2021-29932

CVE-2021-29932 is a high-severity vulnerability in Parse Duration Project Parse Duration 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-770.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Parse Duration Project Parse Duration
Published: 2021-04-01
Last modified: 2026-06-17

Description

An issue was discovered in the parse_duration crate through 2021-03-18 for Rust. It allows attackers to cause a denial of service (CPU and memory consumption) via a duration string with a large exponent.

Frequently asked questions

What is CVE-2021-29932?: An issue was discovered in the parse_duration crate through 2021-03-18 for Rust. It allows attackers to cause a denial of service (CPU and memory consumption) via a duration string with a large exponent.
How severe is CVE-2021-29932?: CVE-2021-29932 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-2021-29932 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-29932?: CVE-2021-29932 affects Parse Duration Project Parse Duration. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-29932?: 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-2021-29932 published?: CVE-2021-29932 was published on 2021-04-01 and last updated on 2026-06-17.

References

https://rustsec.org/advisories/RUSTSEC-2021-0041.html

Affected products (1)

cpe:2.3:a:parse_duration_project:parse_duration:*:*:*:*:*:rust:*:*

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