CVE-2025-0312Public exploitNetwork attack vector

Server crash via unchecked GGUF pointer dereference

Published Mar 20, 2025 · Updated Mar 20, 2025

Null pointer dereference in Ollama 0.3.14 and earlier allows remote attackers to crash the server via a crafted GGUF model. During model creation, the GGUF-loading path dereferences a null pointer derived from attacker-controlled model data without first checking it. An unauthenticated network request that uploads and creates the model is sufficient to interrupt service; no confidentiality or integrity impact is reported.

CVSS severity7.5
High
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Null pointer dereference in Ollama 0.3.14 and earlier allows remote attackers to crash the server via a crafted GGUF model. During model creation, the GGUF-loading path dereferences a null pointer derived from attacker-controlled model data without first checking it. An unauthenticated network request that uploads and creates the model is sufficient to interrupt service; no confidentiality or integrity impact is reported.

The record

CVE
CVE-2025-0312
Published
Mar 20, 2025
Updated
Mar 20, 2025
Vendor
Ollama
Product
Ollama
Classifications
CWE-476, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 20, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <=latest

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ollama · Ollamaversion=unspecified <=latest

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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