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CVE-2025-1975

Improper Validation of Array Index in ollama/ollama

HIGH
7.5
CVSS Score
Published: May 16, 2025 at 08:25 AM UTC
Updated: June 17, 2026 at 08:40 AM UTC
1 product affected across 1 vendorOllama

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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
PoC

Description

A vulnerability in the Ollama server version 0.5.11 allows a malicious user to cause a Denial of Service (DoS) attack by customizing the manifest content and spoofing a service. This is due to improper validation of array index access when downloading a model via the /api/pull endpoint, which can lead to a server crash.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ollama· Ollama
95%
v ≤ latest0.5.11

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitThird Party Advisory
Source: [email protected]
https://huntr.com/bounties/921ba5d4-f1d0-4c66-9764-4f72dffe7acd

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGH@huntr_ai
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-129

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