Oracle Net Services
Monthly
Unauthenticated remote compromise of Oracle Net Services affects Oracle Database Server versions 19.3-19.31, 21.3-21.22, and 23.4.0-23.26.2, letting a network attacker reaching the database listener over Oracle Net (typically TCP 1521) read all data accessible to the component and hang or repeatedly crash it for a complete denial of service. Rated CVSS 3.1 9.1 with high confidentiality and availability impact and no integrity impact, it requires no authentication or user interaction. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the low attack complexity and network-facing nature make it a high remediation priority.
Unauthenticated remote compromise of Oracle Net Services affects Oracle Database Server versions 19.3-19.31, 21.3-21.22, and 23.4.0-23.26.2, letting a network attacker reaching the database listener over Oracle Net (typically TCP 1521) read all data accessible to the component and hang or repeatedly crash it for a complete denial of service. Rated CVSS 3.1 9.1 with high confidentiality and availability impact and no integrity impact, it requires no authentication or user interaction. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the low attack complexity and network-facing nature make it a high remediation priority.