How severe is CVE-2024-8063?

CVE-2024-8063 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-2024-8063 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-8063?

CVE-2024-8063 affects Ollama. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-8063?

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-2024-8063 have an EU (EUVD) identifier?

Yes. CVE-2024-8063 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-6935.

When was CVE-2024-8063 published?

CVE-2024-8063 was published on 2025-03-20 and last updated on 2026-06-17.

CVE-2024-8063

CVE-2024-8063 is a high-severity vulnerability in Ollama 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-369.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-6935
Weakness: CWE-369
Affected product: Ollama
Published: 2025-03-20
Last modified: 2026-06-17

Description

A divide by zero vulnerability exists in ollama/ollama version v0.3.3. The vulnerability occurs when importing GGUF models with a crafted type for `block_count` in the Modelfile. This can lead to a denial of service (DoS) condition when the server processes the model, causing it to crash.

Frequently asked questions

What is CVE-2024-8063?: A divide by zero vulnerability exists in ollama/ollama version v0.3.3. The vulnerability occurs when importing GGUF models with a crafted type for `block_count` in the Modelfile. This can lead to a denial of service (DoS) condition when the server processes the model, causing it to crash.
How severe is CVE-2024-8063?: CVE-2024-8063 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-2024-8063 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-8063?: CVE-2024-8063 affects Ollama. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-8063?: 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-2024-8063 have an EU (EUVD) identifier?: Yes. CVE-2024-8063 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-6935.
When was CVE-2024-8063 published?: CVE-2024-8063 was published on 2025-03-20 and last updated on 2026-06-17.

References

https://huntr.com/bounties/fd8e1ed6-21d2-4c9e-8395-2098f11b7db9

Affected products (1)

cpe:2.3:a:ollama:ollama:0.3.3:*:*:*:*:*:*:*

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