CVE-2025-0312: Ollama Null Pointer Dereference Causes Denial of Service
Ollama
A null pointer dereference vulnerability in Ollama allows malicious users to crash the server by uploading a customized GGUF model file. The issue leads to a remote denial of service attack.
disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why
- CVSS
- 7.5
- EPSS
- 0.01 · top 49% · 2026-11-13
- fix status
- Fix status unknown
- first report
- 20 Mar 2025
- last update
- 20 Mar 2025
- CVE ids
Timeline · 2
Sources · 2
Advisories and databases
- 2025-03-20CVE-2025-0312: Ollama Denial of Service (DoS) via Null Pointer DereferenceGitHub Advisory Database · github.com/advisories/GHSA-p2wh-w96x-w232
- 2025-03-20CVE-2025-0312: A vulnerability in ollama/ollama versions <=0.3.14 allows a malicious user to create a customized GGUF model file that, when…NVD · nvd.nist.gov/vuln/detail/CVE-2025-0312
Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.
Classification
- lane
- Patch now
- AI role
- Attack on AI
- categories
- Infrastructure vulnerability
- severity
- 2 · Disclosed vulnerability
- fix status
- Fix status unknown
- targets
- Framework / tooling
- owasp llm top 10
- LLM03:2025 Supply Chain
- mitre atlas
- no technique for these categories
- dates
- happened 20 Mar 2025 · first reported 20 Mar 2025
- origin
- GitHub Advisory DatabaseVulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
- record
- confidence 0.95 · created 2026-10-18 07:00Z · updated 2026-10-18 10:04Z
Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned
Copy a brief
This record as a short Markdown brief, for a ticket, a chat or a coding agent.
the brief as text
# CVE-2025-0312: Ollama Null Pointer Dereference Causes Denial of Service https://gcdradar.vercel.app/incidents/cve-2025-0312-ollama-null-pointer-dereference-causes-denial · AIR-2025-0255 · closed 2025-03-20 - Lane: Patch now - Severity: 2 (Disclosed vulnerability) - Fix status: Fix status unknown - First reported: 2025-03-20 - AI role: Attack on AI - Products: Ollama - CVE ids: CVE-2025-0312 - CVSS: 7.5 ## Summary A null pointer dereference vulnerability in Ollama allows malicious users to crash the server by uploading a customized GGUF model file. The issue leads to a remote denial of service attack. ## What to do No action recorded; read the sources below and the vendor's advisory. ## Latest updates - 2025-03-20: CVE-2025-0312: A vulnerability in ollama/ollama versions <=0.3.14 allows a malicious user to create a customized GGUF model file that, when… (https://nvd.nist.gov/vuln/detail/CVE-2025-0312) - 2025-03-20: CVE-2025-0312: Ollama Denial of Service (DoS) via Null Pointer Dereference (https://github.com/advisories/GHSA-p2wh-w96x-w232) ## Sources - 2025-03-20 GitHub Advisory Database: CVE-2025-0312: Ollama Denial of Service (DoS) via Null Pointer Dereference https://github.com/advisories/GHSA-p2wh-w96x-w232 - 2025-03-20 NVD: CVE-2025-0312: A vulnerability in ollama/ollama versions <=0.3.14 allows a malicious user to create a customized GGUF model file that, when… https://nvd.nist.gov/vuln/detail/CVE-2025-0312 Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.
Related
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Patch now · Disclosed · since 20 Mar 2025 · CVE-2025-0315
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Patch now · Disclosed · since 20 Mar 2025 · CVE-2024-8063
AI - closed7.5Ollama CVE-2025-0317: Ollama Divide-By-Zero Error Leads to Server Crash
Patch now · Disclosed · since 20 Mar 2025 · CVE-2025-0317
AI - closed7.5Ollama CVE-2024-12055: Ollama allows out-of-bounds read via crafted GGUF model
Patch now · Disclosed · since 20 Mar 2025 · CVE-2024-12055
AI - closed7.5Ollama Ollama Server Vulnerable to Denial of Service via Crafted GZIP
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AI - closed6.6Ollama CVE-2025-44779: Ollama arbitrary file deletion vulnerability
Patch now · Disclosed · since 7 Aug 2025 · CVE-2025-44779
AI