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TI-2023-08271 Aliases CVE-2023-21893GHSA-5pm2-9mr2-3frq

Improper access control in Oracle Data Provider for .NET

Priority LOW 36CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-284.

Summary

Vulnerability in the Oracle Data Provider for .NET component of Oracle Database Server. Supported versions that are affected are 19c and 21c. Difficult to exploit vulnerability allows unauthenticated attacker with network access via TCPS to compromise Oracle Data Provider for .NET. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of Oracle Data Provider for .NET. Note: Applies also to Database client-only on Windows platform. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00611 49th percentileScored 2026-11-07
Fix Fixed Oracle.ManagedDataAccess (NuGet): 21.9.0, 19.18.0Oracle.ManagedDataAccess.Core (NuGet): 3.21.90, 2.19.180

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OracleData Provider for .NET19c; 21c—No fix listedCNA
—Oracle.ManagedDataAccess (NuGet)21.0.0 to before 21.9.021.9.0Patch availableGHSA-5pm2-9mr2-3frq
—Oracle.ManagedDataAccess.Core (NuGet)3.21.0 to before 3.21.903.21.90Patch availableGHSA-5pm2-9mr2-3frq
—Oracle.ManagedDataAccess (NuGet)19.0.0 to before 19.18.019.18.0Patch availableGHSA-5pm2-9mr2-3frq
—Oracle.ManagedDataAccess.Core (NuGet)2.19.0 to before 2.19.1802.19.180Patch availableGHSA-5pm2-9mr2-3frq
  • Data Provider for .NET VendorOracle Affected 19c; 21c Fixed in — No fix listed CNA
  • Oracle.ManagedDataAccess (NuGet) Vendor— Affected 21.0.0 to before 21.9.0 Fixed in 21.9.0 Patch available GHSA-5pm2-9mr2-3frq
  • Oracle.ManagedDataAccess.Core (NuGet) Vendor— Affected 3.21.0 to before 3.21.90 Fixed in 3.21.90 Patch available GHSA-5pm2-9mr2-3frq
  • Oracle.ManagedDataAccess (NuGet) Vendor— Affected 19.0.0 to before 19.18.0 Fixed in 19.18.0 Patch available GHSA-5pm2-9mr2-3frq
  • Oracle.ManagedDataAccess.Core (NuGet) Vendor— Affected 2.19.0 to before 2.19.180 Fixed in 2.19.180 Patch available GHSA-5pm2-9mr2-3frq

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:oracle:database_server:19c:*:*:*:*:*:*:*19cVulnerableOracle
cpe:2.3:a:oracle:database_server:21c:*:*:*:*:*:*:*21cVulnerableOracle
  • cpe:2.3:a:oracle:database_server:19c:*:*:*:*:*:*:* Versions 19c Vulnerable ·Oracle
  • cpe:2.3:a:oracle:database_server:21c:*:*:*:*:*:*:* Versions 21c Vulnerable ·Oracle

Remediation

  • Fix · GHSA-5pm2-9mr2-3frq Oracle.ManagedDataAccess (NuGet) Fixed in 21.9.0 Advisory →
  • Fix · GHSA-5pm2-9mr2-3frq Oracle.ManagedDataAccess.Core (NuGet) Fixed in 3.21.90 Advisory →
  • Fix · GHSA-5pm2-9mr2-3frq Oracle.ManagedDataAccess (NuGet) Fixed in 19.18.0 Advisory →
  • Fix · GHSA-5pm2-9mr2-3frq Oracle.ManagedDataAccess.Core (NuGet) Fixed in 2.19.180 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-21893
  2. 2026-10-03 Alias added: GHSA-5pm2-9mr2-3frq

References

Patch 1

Advisory 1

Other 2

  • TI-2009-01887 Unspecified vulnerability in the Network Authentication component in Oracle Database… CVSS 2.0HIGH 10.0
  • TI-2002-00816 Cross-site scripting (XSS) vulnerability in the default error page of Apache 2.0 before… CVSS 2.0MEDIUM 6.8
  • TI-2012-01463 The TNS Listener, as used in Oracle Database 11g 11.1.0.7, 11.2.0.2, and 11.2.0.3, and… CVSS 2.0HIGH 7.5
  • TI-2010-03429 Unspecified vulnerability in the Client System Analyzer component in Oracle Database… CVSS 2.0HIGH 7.5
  • TI-2006-00277 Unspecified vulnerability in the Oracle HTTP Server component of Oracle Database Server… CVSS 2.0HIGH 10.0
  • TI-2018-10571 FasterXML jackson-databind 2.x before 2.9.7 might allow remote attackers to execute… CVSS 3.1CRITICAL 9.8
See all 530 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences