How severe is CVE-2024-28123?

CVE-2024-28123 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2024-28123 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-28123?

CVE-2024-28123 affects Wasmi-labs Wasmi. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-28123?

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.

Does CVE-2024-28123 have an EU (EUVD) identifier?

Yes. CVE-2024-28123 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0852.

When was CVE-2024-28123 published?

CVE-2024-28123 was published on 2024-03-21 and last updated on 2026-06-17.

CVE-2024-28123

CVE-2024-28123 is a high-severity vulnerability in Wasmi-labs Wasmi with a CVSS 3.x base score of 7.3. 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-0852
Weakness: CWE-787
Affected product: Wasmi-labs Wasmi
Published: 2024-03-21
Last modified: 2026-06-17

Description

Wasmi is an efficient and lightweight WebAssembly interpreter with a focus on constrained and embedded systems. In the WASMI Interpreter, an Out-of-bounds Buffer Write will arise if the host calls or resumes a Wasm function with more parameters than the default limit (128), as it will surpass the stack value. This doesn’t affect calls from Wasm to Wasm, only from host to Wasm. This vulnerability was patched in version 0.31.1.

Frequently asked questions

What is CVE-2024-28123?: Wasmi is an efficient and lightweight WebAssembly interpreter with a focus on constrained and embedded systems. In the WASMI Interpreter, an Out-of-bounds Buffer Write will arise if the host calls or resumes a Wasm function with more parameters than the default limit (128), as it will surpass the stack value. This doesn’t affect calls from Wasm to Wasm, only from host to Wasm. This vulnerability was patched in version 0.31.1.
How severe is CVE-2024-28123?: CVE-2024-28123 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2024-28123 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-28123?: CVE-2024-28123 affects Wasmi-labs Wasmi. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-28123?: 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.
Does CVE-2024-28123 have an EU (EUVD) identifier?: Yes. CVE-2024-28123 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0852.
When was CVE-2024-28123 published?: CVE-2024-28123 was published on 2024-03-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wasmi-labs:wasmi:*:*:*:*:*:rust:*:*

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