Is CVE-2024-8063 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2024-8063 being exploited in the wild.

How severe is CVE-2024-8063?

High severity, with a CVSS score of 7.5, published 20 March 2025.

Which products and versions are affected?

github.com/ollama/ollama (Go) <= 0.3.3, SEMVER:introduced=0, SEMVER:introduced=0,last_affected=0.3.3; Ollama <= 0.3.3; ollama (PyPI) ECOSYSTEM:introduced=0,last_affected=0.3.3.

Is there a fix for CVE-2024-8063?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2024-8063 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2024-8063?

Check whether you run github.com/ollama/ollama (Go), Ollama or ollama (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2024-8063: Ollama divide by zero vulnerability in GGUF model import

Q: Is there a fix for CVE-2024-8063?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

Q: How is CVE-2024-8063 attacked?

It is attacked over the network, in a software library.

Q: Am I affected by CVE-2024-8063?

Check whether you run github.com/ollama/ollama (Go), Ollama or ollama (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2024-8063 · Severity: high · CVSS 7.5 · Published 2025-03-20

Ollama is a popular platform for running large language models locally. A vulnerability in how it processes certain model files allows an attacker to crash the Ollama server by providing a specially crafted model configuration. This results in a denial of service, preventing users from accessing or using the AI service until it is restarted.

Technologies: github.com/ollama/ollama (Go), Ollama, ollama (PyPI). Vendors: Go, Ollama, PyPI.

Quick answers

Is CVE-2024-8063 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2024-8063 being exploited in the wild.
How severe is CVE-2024-8063?: High severity, with a CVSS score of 7.5, published 20 March 2025.
Which products and versions are affected?: github.com/ollama/ollama (Go) <= 0.3.3, SEMVER:introduced=0, SEMVER:introduced=0,last_affected=0.3.3; Ollama <= 0.3.3; ollama (PyPI) ECOSYSTEM:introduced=0,last_affected=0.3.3.
Is there a fix for CVE-2024-8063?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2024-8063 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2024-8063?: Check whether you run github.com/ollama/ollama (Go), Ollama or ollama (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A divide-by-zero vulnerability (CWE-369) exists in Ollama version 0.3.3 and earlier. The flaw is triggered during the import process of GGUF models when a Modelfile contains a crafted value for the 'block_count' parameter. When the server attempts to process this malformed model, it performs a division by zero, leading to an immediate application crash. This can be exploited by a remote attacker without authentication to cause a denial of service (DoS) condition. While the advisory lists version 0.3.3 as affected, later community reports suggest the issue may persist in subsequent versions.

Affected products

Ollama Ollama <= 0.3.3

Identifiers

CVE-2024-8063
GHSA-2xf2-gjm6-g2c6
GO-2025-3689
PYSEC-2025-144

Timeline

2025-03-20: disclosed: NVD and GitHub Advisory published
2024-12-10: other: Issue reported on Ollama GitHub repository

References

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