Vulnerability · Published Jul 21, 2026 · Assigned by oracle

CVE-2026-61223

Critical 9.0

In plain English

A critical-severity improper access control in Oracle Communications Converged Application Server from Oracle Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).

Severity (CVSS 3.1)9.0Critical

Exploit odds (30 days)0.4%top 66.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Vulnerability in the Oracle Communications Converged Application Server product of Oracle Communications (component: Security). Supported versions that are affected are 8.2 and 8.3. Difficult to exploit vulnerability allows unauthenticated attacker with network access via TCP/IP to compromise Oracle Communications Converged Application Server. While the vulnerability is in Oracle Communications Converged Application Server, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Communications Converged Application Server. CVSS 3.1 Base Score 9.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H).

Affected products (as reported)

Vendor	Product	Versions
Oracle Corporation	Oracle Communications Converged Application Server	8.28.3

Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

References

Oracle Advisory vendor-advisory