CVE-2026-73963: Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebCenter Portal. Successful attacks of this vulnerability can result in takeover of Oracle WebCenter Portal. in Oracle Corporation Oracle WebCenter Portal
CVE-2026-73963 is a critical vulnerability in Oracle WebCenter Portal (component: Portlet Services) affecting versions 12.2.1.4.0 and 14.1.2.0.0. It allows an unauthenticated attacker with network access via HTTP to fully compromise the portal, resulting in complete takeover. The vulnerability has a CVSS 3.1 base score of 9.8, indicating high impact on confidentiality, integrity, and availability. Oracle has released security patches addressing this and many other vulnerabilities in their September 2026 Critical Security Patch Update. Customers are strongly advised to apply these patches promptly to mitigate risk.
AI Analysis
Technical Summary
CVE-2026-73963 is a critical security vulnerability in Oracle WebCenter Portal's Portlet Services component. It affects supported versions 12.2.1.4.0 and 14.1.2.0.0. The flaw allows an unauthenticated attacker with network access via HTTP to fully compromise the Oracle WebCenter Portal, impacting confidentiality, integrity, and availability. The vulnerability has a CVSS 3.1 score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). Oracle's September 2026 Critical Security Patch Update includes fixes for this vulnerability among 673 patches across multiple products.
Potential Impact
Successful exploitation can lead to complete takeover of Oracle WebCenter Portal, resulting in full loss of confidentiality, integrity, and availability of the affected system. This could allow attackers to execute arbitrary actions within the portal environment without authentication.
Mitigation Recommendations
Oracle has released an official fix for this vulnerability as part of the September 2026 Critical Security Patch Update. Users of Oracle WebCenter Portal versions 12.2.1.4.0 and 14.1.2.0.0 should apply the relevant patches promptly to remediate this issue. Oracle strongly recommends applying security patches without delay and remaining on actively supported versions. No alternative mitigations or temporary fixes are indicated in the advisory.
CVE-2026-73963: Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebCenter Portal. Successful attacks of this vulnerability can result in takeover of Oracle WebCenter Portal. in Oracle Corporation Oracle WebCenter Portal
Description
CVE-2026-73963 is a critical vulnerability in Oracle WebCenter Portal (component: Portlet Services) affecting versions 12.2.1.4.0 and 14.1.2.0.0. It allows an unauthenticated attacker with network access via HTTP to fully compromise the portal, resulting in complete takeover. The vulnerability has a CVSS 3.1 base score of 9.8, indicating high impact on confidentiality, integrity, and availability. Oracle has released security patches addressing this and many other vulnerabilities in their September 2026 Critical Security Patch Update. Customers are strongly advised to apply these patches promptly to mitigate risk.
CVSS v3.1
Score 9.8critical
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-73963 is a critical security vulnerability in Oracle WebCenter Portal's Portlet Services component. It affects supported versions 12.2.1.4.0 and 14.1.2.0.0. The flaw allows an unauthenticated attacker with network access via HTTP to fully compromise the Oracle WebCenter Portal, impacting confidentiality, integrity, and availability. The vulnerability has a CVSS 3.1 score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). Oracle's September 2026 Critical Security Patch Update includes fixes for this vulnerability among 673 patches across multiple products.
Potential Impact
Successful exploitation can lead to complete takeover of Oracle WebCenter Portal, resulting in full loss of confidentiality, integrity, and availability of the affected system. This could allow attackers to execute arbitrary actions within the portal environment without authentication.
Mitigation Recommendations
Oracle has released an official fix for this vulnerability as part of the September 2026 Critical Security Patch Update. Users of Oracle WebCenter Portal versions 12.2.1.4.0 and 14.1.2.0.0 should apply the relevant patches promptly to remediate this issue. Oracle strongly recommends applying security patches without delay and remaining on actively supported versions. No alternative mitigations or temporary fixes are indicated in the advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-2vp6-w498-hg23
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-73963"]
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aaa07e755bf5e2cf5ea342a
Added to database: 09/16/2026, 03:07:19 UTC
Last enriched: 09/16/2026, 04:50:47 UTC
Last updated: 09/16/2026, 05:01:22 UTC
Views: 2
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