CVE-2024-21126

mediumpriority · track · 0EPSS 0.005 · 42 %ileDEEUNLRUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.49% (42nd) EPSS

CVSS 4.9 · medium

Is it mine?

16 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 Database Portable Clusterware component of Oracle Database Server. Supported versions that are affected are 19.3-19.23 and 21.3-21.14. Easily exploitable vulnerability allows unauthenticated attacker with network access via DNS to compromise Oracle Database Portable Clusterware. While the vulnerability is in Oracle Database Portable Clusterware, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Database Portable Clusterware. CVSS 3.1 Base Score 5.8 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L).

cvss

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

5.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.14.9mediumAV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.15.8mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Lsecondary · ENISA EU

v3.15.8mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Lsecondary · secalert_us@oracle.com USexploitability 3.9 · impact 1.4

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L/E:Usecondary · CVSS-BT (t0sche)

v3.15.8mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Lsecondary · NCSC-NL NL

ssvc

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

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USCWE-400USCWE-404US

affected products (16)

Products and version ranges known to be affected.

Oracle Database Server 23.4all versionscert_bundDEcpe:/a:oracle:database_server:23.4
Oracle Database Server <=19.23all versionscert_bundDE
Oracle Database Server <=21.14all versionscert_bundDE
Oracle Database Server≤ 19.23cert_bundDE
Oracle Database Server≤ 21.14cert_bundDE
Oracle Corporation Database - Enterprise Edition≤ 21.3 ≤21.14enisa_euvdEU
Oracle Corporation Database - Enterprise Edition≤ 19.3 ≤19.23enisa_euvdEU
Oracle Corp. Database Server19.3 → 19.23fstec_bduRU
Oracle Corp. Database Server21.3 → 21.14fstec_bduRU
database_serverall versionsncsc_nlNLcpe:2.3:a:oracle:database_server:__database_core___23.4:*:*:*:*:*:*:*
database_serverall versionsncsc_nlNLcpe:2.3:a:oracle:database_server:_java_vm___23.4:*:*:*:*:*:*:*
database_serverall versionsncsc_nlNLcpe:2.3:a:oracle:database_server:_multilingual_engine___23.4:*:*:*:*:*:*:*
database_serverall versionsncsc_nlNLcpe:2.3:a:oracle:database_server:_oml4py___23.4:*:*:*:*:*:*:*
oracle database serverall versionsncsc_nlNLcpe:2.3:a:oracle:database_server:*:*:*:*:*:*:*:*
oracle database server19.3 → 19.23nvdUScpe:2.3:a:oracle:database_server:*:*:*:*:*:*:*:*
oracle database server21.3 → 21.14nvdUScpe:2.3:a:oracle:database_server:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2024-0291 Kwetsbaarheden verholpen in Oracle Database ServerNL2024-07-17csaf · ncsc_nlNL
Er zijn kwetsbaarheden verholpen in Oracle Database Server.
WID-SEC-W-2024-1645Oracle Database Server: Mehrere SchwachstellenDeutsch2024-07-16csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Database Server ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

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 ncsc_nl nvd NVD CVE.org MITRE

published 2024-07-16modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

scry

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