Impact
Oracle MySQL Server and Cluster contain a flaw in the replication component that can be triggered when a high‑privileged attacker with network access sends specially crafted replication traffic to a vulnerable instance. The flaw stems from insecure privilege handling (CWE‑266) and inadequate access control (CWE‑284), allowing the attacker to bypass authentication and execute arbitrary privileged actions on the database server. Successful exploitation leads to full takeover of the MySQL Server or Cluster, resulting in loss of confidentiality, integrity, and availability of all data on the affected systems.
Affected Systems
Affected products are Oracle MySQL Server and Oracle MySQL Cluster. Vulnerable releases include MySQL Server versions 8.4.0 through 8.4.10 and 9.7.0 through 9.7.1, and MySQL Cluster versions 8.0.0 through 8.0.47, 8.4.0 through 8.4.10, and 9.7.0 through 9.7.1.
Risk and Exploitability
The CVSS v3.1 base score of 6.6 indicates moderate risk, with high confidentiality, integrity, and availability impact. The EPSS score of <1% shows a very low probability of exploitation in the current context, and the vulnerability is not listed in the CISA KEV catalog. However, the requirement for network connectivity and high‑privileged credentials (AC:H, PR:H, AV:N) means that an attacker who can reach the replication interfaces and already possesses administrative access can exploit this weakness to seize the database. Consequently, the attack vector is primarily over the replication protocols exposed on the network.
OpenCVE Enrichment