CVE-2023-21893

highpriority · track · 30EPSS 0.006 · 48 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.59% (48th) EPSS

CVSS 7.5 · high

Is it mine?

12 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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).

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.6 · impact 5.9

v3.17.5highAV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · secalert_us@oracle.com USexploitability 1.6 · impact 5.9

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USCWE-284USCWE-284US

affected products (12)

Products and version ranges known to be affected.

Oracle Database Server 19call versionscert_bundDEcpe:/a:oracle:database_server:19c
Oracle Database Server 21call versionscert_bundDEcpe:/a:oracle:database_server:21c
Oracle Corporation Data Provider for .NET≤ 19cenisa_euvdEU
Oracle Corporation Data Provider for .NET≤ 21cenisa_euvdEU
Oracle Corp. Database Server≤ 21cfstec_bduRU
Oracle Corp. Database Server≤ 19cfstec_bduRU
oracle database server= 19cnvdUScpe:2.3:a:oracle:database_server:*:*:*:*:*:*:*:*
oracle database server= 21cnvdUScpe:2.3:a:oracle:database_server:*:*:*:*:*:*:*:*
NuGet Oracle.ManagedDataAccess19.0.0 → 19.18.0osvUSpkg:nuget/Oracle.ManagedDataAccess
NuGet Oracle.ManagedDataAccess21.0.0 → 21.9.0osvUSpkg:nuget/Oracle.ManagedDataAccess
NuGet Oracle.ManagedDataAccess.Core2.19.0 → 2.19.180osvUSpkg:nuget/Oracle.ManagedDataAccess.Core
NuGet Oracle.ManagedDataAccess.Core3.21.0 → 3.21.90osvUSpkg:nuget/Oracle.ManagedDataAccess.Core

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0141Oracle Database Server: Mehrere SchwachstellenDeutsch2023-01-17csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Oracle Database Server ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
GHSA-5pm2-9mr2-3frqComponent takeover in Oracle Data Provider for .NET2023-01-18ghsa · osvUS
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). See the readme.txt files inside the `.nupkg` packages for a reference to the fix.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd osv NVD CVE.org MITRE

published 2023-01-18modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

scry

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