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Two critical flaws in Oracle Database Server
Synthèse
Oracle a corrigé deux vulnérabilités critiques dans son serveur de base de données : CVE-2026-61211 (score CVSS 9.9) dans le package DBMS_CLOUD permettant à un attaquant peu privilégié de compromettre le système, et CVE-2026-47040 affectant Connection Manager, exploitable à distance sans authentification. Ces failles impactent les versions 19.3 à 19.31 et 23.4.0 à 23.26.2, avec une fenêtre critique de 72 heures pour les environnements exposés.
The most severe flaw Oracle patched in its flagship database product is CVE-2026-61211, a vulnerability in the RDBMS component’s DBMS_CLOUD package with a CVSS score of 9. 9. This easily exploitable vulnerability allows a low-privileged attacker having Execute DBMS_CLOUD privilege with network access via Oracle Net to compromise the RDBMS, Oracle said in the patch update statement. “While the vulnerability is in RDBMS, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of RDBMS,” it warned.
The flaw affects Database Server versions 19. 3 through 19. 31 and 23. 4. 0 through 23.
26. 2. Sanchit Vir Gogia, chief analyst at Greyhound Research, said the 9. 9 score should be read as serious but conditional. Exposure depends on configuration, he said: On customer-managed databases, DBMS_CLOUD is absent until installed, and grants and network access lists determine the radius from there.
“Where DBMS_CLOUD is broadly granted and reachable, the emergency is real and the window is seventy-two hours; where it is absent, the accelerated database wave will do. ” Vibhum Dubey, a cybersecurity researcher and red teamer, said the flaw stood out to him because it checks several boxes that concern defenders. “Database servers often hold an organization’s most valuable data, so even if exploitation is not publicly observed yet, I don’t think this is the kind of issue you leave until the next routine maintenance window if your environment is exposed,” Dubey said. A second Database Server flaw, CVE-2026-47040, affects Connection Manager in Oracle Net Services, is remotely exploitable without credentials. Oracle’s risk matrix lists six Database Product vulnerabilities in this cycle as reachable over a network with no authentication required, the statement added.