HighVulnerability
CVE-2025-66959: ollama denial of service via GGUF decoder
- Source
- NVD(opens in a new tab)
- Identifier
- CVE-2025-66959
- Published
- Record updated
- Known exploitation
- Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
- EPSS
- 5.3%
Summary
CVE-2025-66959 describes an issue in ollama v.0.12.10 that lets a remote attacker cause a denial of service through the GGUF decoder. The source links a GitHub issue (ollama/ollama issue 9820) and a third-party advisory that attributes the flaw to an unchecked length in the GGUF decoder copy, causing a panic. The CWE entries listed are CWE-20 (Improper Input Validation) and CWE-400 (Uncontrolled Resource Consumption), and NVD has not yet provided an assessment.
Mitigation
The source does not state a fix yet. Check the original advisory for updates.
Topics
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