Skip to content
major vulnerability· requires attention

Oracle WebCenter Portal is widely used enterprise software; vulnerability enables remote takeover via HTTP and can disrupt organizations.

Applications

CVE-2026-83053

8.8
High
EPSS 0.42%

Remote takeover vulnerability in Oracle WebCenter Portal (Runtime Tools).

exploited
No known exploitation not in CISA KEV as of our last sync
fix
No fixed release stated by the publisher
likelihood
EPSS 0.42%top 64% of scored CVEs
Published 15 Sept 2026Analysed here 17 Sept 2026CVSS scored by the publisher (CNA)
common questions

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 0.42% 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.

executive summary
technical analysis
affected
Oracle WebCenter Portal 12.2.1.4.0Oracle WebCenter Portal 14.1.2.0.0
impact

Remote takeover of WebCenter Portal via HTTP by a low-privileged attacker, enabling RCE, admin access, data theft and service disruption.

action required

Immediate action required

affected versions
Oracle Corporation Oracle WebCenter Portal
  • 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.

cisa ssvc

exploitation
none
automatable
no
technical impact
total

Assessed by CISA 17 Sept 2026 (SSVC 2.0.3).

timeline

  1. 15 Sept 2026Published
  2. 17 Sept 2026Analysed by vulneraibility.com · 2 days later
  3. 17 Sept 2026CISA SSVC assessment: exploitation none · same day later
  4. 17 Sept 2026CVE record last updated · same day later
how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
NVDCVE.orgCVE DetailsSource
1 reference in the CVE record: 1 advisory
  • Advisoryoracle.com /security-alerts/cspusep2026.html

sources

  • CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
  • NVD: CVSS and CPE data
  • CISA Vulnrichment (ADP): SSVC decision points
  • FIRST EPSS: exploit probability and percentile
  • Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.
get alerted

Track only the vulnerabilities that affect your infrastructure.

start for free

© 2026 vulneraibility.com, all rights reserved