Oracle Coherence is widely used enterprise middleware; unauthenticated remote exploit enabling DoS and data modification could disrupt many organizations.
CVE-2026-60255
Unauthenticated network vulnerability in Oracle Coherence enabling DoS and data modification.
Is CVE-2026-60255 being exploited?
Not confirmed. CVE-2026-60255 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 0.38% probability of exploitation in the next 30 days.
How severe is CVE-2026-60255?
CVE-2026-60255 is rated High. 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-2026-60255?
Yes. A fix has been recorded for CVE-2026-60255. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-60255 affect?
CVE-2026-60255 affects Oracle Coherence (Oracle Fusion Middleware) 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-60255?
Restrict Coherence TCP access, apply vendor patch/mitigations when released, and monitor logs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote attacker can crash/hang Coherence (complete DoS) and perform unauthorized updates/inserts/deletes to some accessible data via TCP.
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.