CVE-2025-66959
An issue in ollama v.0.12.10 allows a remote attacker to cause a denial of service via the GGUF...
An issue in ollama v.0.12.10 allows a remote attacker to cause a denial of service via the GGUF decoder
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
An issue in ollama v.0.12.10 allows a remote attacker to cause a denial of service via the GGUF decoder
- Record
CVE-2025-66959- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400, CWE-20
- Updated
- 2026-11-02
EUVDEUVD-2026-3626
An issue in ollama v.0.12.10 allows a remote attacker to cause a denial of service via the GGUF decoder
- Record
EUVD-2026-3626- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-h73v-mc67-xw25
An issue in ollama v.0.12.10 allows a remote attacker to cause a denial of service via the GGUF...
An issue in ollama v.0.12.10 allows a remote attacker to cause a denial of service via the GGUF decoder
- Record
GHSA-h73v-mc67-xw25- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
NVD
An issue in ollama v.0.12.10 allows a remote attacker to cause a denial of service via the GGUF decoder
- Record
CVE-2025-66959- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-20, CWE-400
- Updated
- 2026-11-02
OSV
An issue in ollama v.0.12.10 allows a remote attacker to cause a denial of service via the GGUF decoder
- Record
CVE-2025-66959- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVPYSEC-2026-101
An issue in ollama v.0.12.10 allows a remote attacker to cause a denial of service via the GGUF decoder
- Record
PYSEC-2026-101- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-66959 is a high vulnerability (CVSS 7.5) in Ollama, published January 21, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.33%, the 92nd percentile. No source names a fixed version.