Oracle WebCenter Portal is widely used enterprise software; vulnerability enables remote takeover via HTTP and can disrupt organizations.
CVE-2026-83053
Remote takeover vulnerability in Oracle WebCenter Portal (Runtime Tools).
Is CVE-2026-83053 being exploited?
Not confirmed. CVE-2026-83053 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 0.35% probability of exploitation in the next 30 days.
How severe is CVE-2026-83053?
CVE-2026-83053 is rated High with a CVSS score of 8.8. 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-2026-83053?
Not known from our data. No patch reference has been recorded for CVE-2026-83053, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-83053 affect?
CVE-2026-83053 affects Oracle WebCenter Portal 12.2.1.4.0, Oracle WebCenter Portal 14.1.2.0.0. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-83053?
Apply vendor updates ASAP; restrict HTTP access, deploy WAF rules and monitor logs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote takeover of WebCenter Portal via HTTP by a low-privileged attacker, enabling RCE, admin access, data theft and service disruption.
Immediate action required
- affected12.2.1.4.0
- affected14.1.2.0.0
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.