How severe is CVE-2024-39720?

CVE-2024-39720 has a CVSS 3.x base score of 8.2, 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 none, and availability high.

Is CVE-2024-39720 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-39720?

CVE-2024-39720 affects Ollama. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-39720?

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-2024-39720 have an EU (EUVD) identifier?

Yes. CVE-2024-39720 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-3003.

When was CVE-2024-39720 published?

CVE-2024-39720 was published on 2024-10-31 and last updated on 2026-06-17.

CVE-2024-39720

CVE-2024-39720 is a high-severity vulnerability in Ollama with a CVSS 3.x base score of 8.2. 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-125.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 2% (83rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-3003
Weakness: CWE-125
Affected product: Ollama
Published: 2024-10-31
Last modified: 2026-06-17

Description

An issue was discovered in Ollama before 0.1.46. An attacker can use two HTTP requests to upload a malformed GGUF file containing just 4 bytes starting with the GGUF custom magic header. By leveraging a custom Modelfile that includes a FROM statement pointing to the attacker-controlled blob file, the attacker can crash the application through the CreateModel route, leading to a segmentation fault (signal SIGSEGV: segmentation violation).

Frequently asked questions

What is CVE-2024-39720?: An issue was discovered in Ollama before 0.1.46. An attacker can use two HTTP requests to upload a malformed GGUF file containing just 4 bytes starting with the GGUF custom magic header. By leveraging a custom Modelfile that includes a FROM statement pointing to the attacker-controlled blob file, the attacker can crash the application through the CreateModel route, leading to a segmentation fault (signal SIGSEGV: segmentation violation).
How severe is CVE-2024-39720?: CVE-2024-39720 has a CVSS 3.x base score of 8.2, 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 none, and availability high.
Is CVE-2024-39720 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-39720?: CVE-2024-39720 affects Ollama. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-39720?: 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-2024-39720 have an EU (EUVD) identifier?: Yes. CVE-2024-39720 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-3003.
When was CVE-2024-39720 published?: CVE-2024-39720 was published on 2024-10-31 and last updated on 2026-06-17.

References

Affected products (1)

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

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