High severity · published May 16, 2025
CVE-2025-1975
Improper Validation of Array Index in ollama/ollama
7.5
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OL
ollama/ollama · ollama
through latest · source: vendor
OL
Ollama · Ollama
0.5.11 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-1975
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-1975
Exploit
https://huntr.com/bounties/921ba5d4-f1d0-4c66-9764-4f72dffe7acd
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