Oracle Net Services vulnerabilities
4 known CVE vulnerabilities in Oracle Net Services, translated and rated.
- CVE-2026-83350High
Vulnerability in the Oracle Net Services component of Oracle Database Server affecting versions 21.3-21.23 and 23.4.0-23.26.3. An easily exploitable flaw allows an unauthenticated attacker with network access via Oracle Net to cause a hang or frequently repeatable crash (complete DOS).
- CVE-2026-83349High
Vulnerability in the Oracle Net Services component of Oracle Database Server affecting versions 19.3-19.32, 21.3-21.23 and 23.4.0-23.26.3. An easily exploitable flaw allows an unauthenticated attacker with network access via Oracle Net to cause a hang or frequently repeatable crash (complete DOS).
- CVE-2026-83333High
Vulnerability in the Oracle Net Services component of Oracle Database Server (versions 23.4.0-23.26.3). An unauthenticated attacker with network access via Oracle Net can easily exploit this flaw to cause a hang or frequent crashes (complete DoS) of Oracle Net Services. CVSS 7.5 (Availability impact).
- CVE-2026-47040Critical
Vulnerability in Oracle Net Services (part of Oracle Database Server) allows an unauthenticated attacker remote access to critical data and can cause a complete denial of service (DOS). CVSS score is 9.1.