CVE-2025-15514
Ollama DoS via crafted base64 image in /api/chat
Is CVE-2025-15514 being exploited?
Not confirmed. CVE-2025-15514 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.78% probability of exploitation in the next 30 days.
How severe is CVE-2025-15514?
CVE-2025-15514 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2025-15514?
Yes. A fix has been recorded for CVE-2025-15514. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2025-15514 affect?
CVE-2025-15514 affects Ollama 0.11.5-rc0 to 0.13.5. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2025-15514?
Track updates; upgrade to fixed release when available
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote denial of service: crafted base64 image causes null pointer dereference and segfault in Ollama runner
Patch when possible
- affected>= v0.11.5-rc0 and <= 0.13.5
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.