What’s Vulnerable › Vulnerabilities

CVE-2021-2303

• Severity: medium (CVSS 4.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-04-22 · updated 2026-06-17

Description

Vulnerability in the OSS Support Tools product of Oracle Support Tools (component: Diagnostic Assistant). The supported version that is affected is Prior to 2.12.41. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise OSS Support Tools. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all OSS Support Tools accessible data. CVSS 3.1 Base Score 4.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N).

Affected products

• Oracle Corporation OSS Support Tools: before 2.12.41 — fixed in 2.12.41

How to fix

Upgrade to a fixed version: Oracle Corporation OSS Support Tools 2.12.41. Check the vendor advisory for mitigations.

References

• https://www.oracle.com/security-alerts/cpuapr2021.html
• https://www.zerodayinitiative.com/advisories/ZDI-21-458/
• https://www.oracle.com/security-alerts/cpuapr2021.html
• https://www.zerodayinitiative.com/advisories/ZDI-21-458/

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