SB20260120147 - Multiple vulnerabilities in Oracle Communications Operations Monitor



SB20260120147 - Multiple vulnerabilities in Oracle Communications Operations Monitor

Published: January 20, 2026 Updated: February 6, 2026

Security Bulletin ID SB20260120147
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2025-66418)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to missing limits on the number of links in the decompression chain when handling gzip or zstd data in the server response. A malicious server can send a response with a large amount of links and cause high CPU load, leading to a denial of service condition. 


2) Use-after-free (CVE-ID: CVE-2025-49844)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error. A remote user can use a specially crafted Lua script to manipulate the garbage collector and execute arbitrary code on the target system.


Remediation

Install update from vendor's website.