Affects widely used Oracle Fusion Middleware (Coherence); unauthenticated remote takeover risk across enterprises.
CVE-2026-60300
Unauthenticated remote takeover of Oracle Coherence (RCE, data loss/DoS)
Is CVE-2026-60300 being exploited?
Not confirmed. CVE-2026-60300 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 0.51% probability of exploitation in the next 30 days.
How severe is CVE-2026-60300?
CVE-2026-60300 is rated Critical with a CVSS score of 9.8. 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-2026-60300?
Yes. A fix has been recorded for CVE-2026-60300. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-60300 affect?
CVE-2026-60300 affects Oracle Coherence 12.2.1.4.0, Oracle Coherence 14.1.1.0.0, Oracle Coherence 14.1.2.0.0, Oracle Coherence 15.1.1.0.0, and 1 further product or version. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-60300?
Apply vendor patch/workaround ASAP; block/restrict Coherence TCP ports and isolate instances.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated TCP remote code execution allowing full Oracle Coherence takeover: data theft, integrity loss, and denial of service.
Immediate action required
- affected12.2.1.4.0
- affected14.1.1.0.0
- affected14.1.2.0.0
- affected15.1.1.0.0
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.