How severe is CVE-2021-26954?

CVE-2021-26954 has a CVSS 3.x base score of 5.3, rated medium 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 low.

Is CVE-2021-26954 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-26954?

CVE-2021-26954 affects Qwutils Project Qwutils. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-26954?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-26954 published?

CVE-2021-26954 was published on 2021-02-09 and last updated on 2026-06-17.

CVE-2021-26954

CVE-2021-26954 is a medium-severity vulnerability in Qwutils Project Qwutils with a CVSS 3.x base score of 5.3. 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: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-415
Affected product: Qwutils Project Qwutils
Published: 2021-02-09
Last modified: 2026-06-17

Description

An issue was discovered in the qwutils crate before 0.3.1 for Rust. When a Clone panic occurs, insert_slice_clone can perform a double drop.

Frequently asked questions

What is CVE-2021-26954?: An issue was discovered in the qwutils crate before 0.3.1 for Rust. When a Clone panic occurs, insert_slice_clone can perform a double drop.
How severe is CVE-2021-26954?: CVE-2021-26954 has a CVSS 3.x base score of 5.3, rated medium 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 low.
Is CVE-2021-26954 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26954?: CVE-2021-26954 affects Qwutils Project Qwutils. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-26954?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-26954 published?: CVE-2021-26954 was published on 2021-02-09 and last updated on 2026-06-17.

References

https://rustsec.org/advisories/RUSTSEC-2021-0018.html

Affected products (1)

cpe:2.3:a:qwutils_project:qwutils:*:*:*:*:*:rust:*:*

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