CVE detail
CVE-2025-15514
Ollama 0.11.5-rc0 through current version 0.13.5 contain a null pointer dereference vulnerability in the multi-modal model image processing functionality. When processing base64-encoded image data via the /api/chat endpoint, the application fails to validate that the decoded data represents valid media before passing it to the mtmd_helper_bitmap_init_from_buf function. This function can return NULL for malformed input, but the code does not check this return value before dereferencing the pointer in subsequent operations. A remote attacker can exploit this by sending specially crafted base64 image data that decodes to invalid media, causing a segmentation fault and crashing the runner process. This results in a denial of service condition where the model becomes unavailable to all users until the service is restarted.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 20.8 · diversity 20.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
7 source links · newest first
- https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-15514.jsonsecurity.access.redhat.com
No excerpt available.
Vendor Advisorysecurity.access.redhat.comJan 12, 2026, 11:15 PM - https://bugzilla.redhat.com/show_bug.cgi?id=2428828bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comJan 12, 2026, 11:15 PM - https://access.redhat.com/security/cve/CVE-2025-15514access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 12, 2026, 11:15 PM - https://www.vulncheck.com/advisories/ollama-multi-modal-image-processing-null-pointer-dereferencewww.vulncheck.com
No excerpt available.
Exploitwww.vulncheck.comJan 12, 2026, 11:15 PM - https://ollama.com/ollama.com
No excerpt available.
Productollama.comJan 12, 2026, 11:15 PM No excerpt available.
Exploithuntr.comJan 12, 2026, 11:15 PMNo excerpt available.
Vendor AdvisoryhttpsJan 12, 2026, 11:15 PM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
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