SB20260120114 - Multiple vulnerabilities in Oracle WebLogic Server Proxy Plug-In



SB20260120114 - Multiple vulnerabilities in Oracle WebLogic Server Proxy Plug-In

Published: January 20, 2026 Updated: February 13, 2026

Security Bulletin ID SB20260120114
Severity
Critical
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Critical 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Buffer overflow (CVE-ID: CVE-2022-41342)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error. A local user can trigger memory corruption and execute arbitrary code with elevated privileges.


2) Heap-based buffer overflow (CVE-ID: CVE-2026-21962)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Oracle WebLogic Server Proxy Plug-in when handling HTTP requests. A remote attacker can send specially crafted HTTP requests to the server, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Install update from vendor's website.