How severe is CVE-2020-25796?

CVE-2020-25796 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-2020-25796 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-25796?

CVE-2020-25796 affects Sized-chunks Project Sized-chunks. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-25796?

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-2020-25796 published?

CVE-2020-25796 was published on 2020-09-19 and last updated on 2026-06-17.

CVE-2020-25796

CVE-2020-25796 is a high-severity vulnerability in Sized-chunks Project Sized-chunks 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-129.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-129
Affected product: Sized-chunks Project Sized-chunks
Published: 2020-09-19
Last modified: 2026-06-17

Description

An issue was discovered in the sized-chunks crate through 0.6.2 for Rust. In the InlineArray implementation, an unaligned reference may be generated for a type that has a large alignment requirement.

Frequently asked questions

What is CVE-2020-25796?: An issue was discovered in the sized-chunks crate through 0.6.2 for Rust. In the InlineArray implementation, an unaligned reference may be generated for a type that has a large alignment requirement.
How severe is CVE-2020-25796?: CVE-2020-25796 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-2020-25796 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-25796?: CVE-2020-25796 affects Sized-chunks Project Sized-chunks. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-25796?: 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-2020-25796 published?: CVE-2020-25796 was published on 2020-09-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sized-chunks_project:sized-chunks:*:*:*:*:*:rust:*:*

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