Apache Log4j2 vulnerable to RCE via JDBC Appender when attacker controls configuration (Apache Software Foundation Apache Log4j2)

CVE-2021-44832

MEDIUM 6.6

At a glance

Source: NVD
EPSS: EPSS 97.91 % · percentile 100 (2026-10-29)
State: PUBLISHED
Published: 2021-12-28 19:35 UTC
Updated: 2026-05-29 18:53 UTC
Assigner: apache
NVD status: Modified

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Description

Apache Log4j2 versions 2.0-beta7 through 2.17.0 (excluding security fix releases 2.3.2 and 2.12.4) are vulnerable to a remote code execution (RCE) attack when a configuration uses a JDBC Appender with a JNDI LDAP data source URI when an attacker has control of the target LDAP server. This issue is fixed by limiting JNDI data source names to the java protocol in Log4j2 versions 2.17.1, 2.12.4, and 2.3.2.

Weaknesses (CWE)

CWE-20 — Improper Input Validation
CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

Scores

Version	Score	Vector	Scored by
CVSS 3.1	MEDIUM 6.6	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H	CISA-ADP
CVSS 3.1	MEDIUM 6.6	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)
CVSS 3.1	MEDIUM 6.6	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
CVSS 2.0	HIGH 8.5	AV:N/AC:M/Au:S/C:C/I:C/A:C	NVD · nvd@nist.gov (Primary)

Advisories

GHSA-8489-44mv-ggj8 — Improper Input Validation and Injection in Apache Log4j2

European references

ENISA EUVD · EUVD-2022-0516
GCVE · GCVE-0-2021-44832

CERT-FR advisories

CERTFR-2025-AVI-0855 — Multiples vulnérabilités dans les produits Juniper Networks · cert.ssi.gouv.fr
CERTFR-2025-AVI-0756 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
CERTFR-2024-AVI-0027 — Multiples vulnérabilités dans les produits Juniper Networks · cert.ssi.gouv.fr
CERTFR-2022-AVI-960 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2022-AVI-933 — Multiples vulnérabilités dans Oracle Systems · cert.ssi.gouv.fr
CERTFR-2022-AVI-717 — Multiples vulnérabilités dans les produits Schneider · cert.ssi.gouv.fr
CERTFR-2022-AVI-526 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2022-AVI-366 — Multiples vulnérabilités dans Oracle PeopleSoft · cert.ssi.gouv.fr
CERTFR-2022-AVI-345 — Multiples vulnérabilités dans les produits SAP · cert.ssi.gouv.fr
CERTFR-2022-AVI-205 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2022-AVI-125 — Multiples vulnérabilités dans les produits SAP · cert.ssi.gouv.fr
CERTFR-2022-AVI-1027 — Multiples vulnérabilités dans IBM Db2 · cert.ssi.gouv.fr
CERTFR-2022-AVI-056 — Multiples vulnérabilités dans Oracle WebLogic Server · cert.ssi.gouv.fr
CERTFR-2021-ALE-022 — [MaJ] Vulnérabilité dans Apache Log4j · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:apache:log4j:*:*:*:*:*:*:*:* ≥ 2.0.1 < 2.3.2
cpe:2.3:a:apache:log4j:*:*:*:*:*:*:*:* ≥ 2.4 < 2.12.4
cpe:2.3:a:apache:log4j:*:*:*:*:*:*:*:* ≥ 2.13.0 < 2.17.1
cpe:2.3:a:apache:log4j:2.0:-:*:*:*:*:*:*
cpe:2.3:a:apache:log4j:2.0:beta7:*:*:*:*:*:*
cpe:2.3:a:apache:log4j:2.0:beta8:*:*:*:*:*:*
cpe:2.3:a:apache:log4j:2.0:beta9:*:*:*:*:*:*
cpe:2.3:a:apache:log4j:2.0:rc1:*:*:*:*:*:*
cpe:2.3:a:apache:log4j:2.0:rc2:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_diameter_signaling_router:*:*:*:*:*:*:*:* ≥ 8.0.0.0 ≤ 8.5.1.0
cpe:2.3:a:oracle:communications_interactive_session_recorder:6.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_interactive_session_recorder:6.4:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_gateway:*:*:*:*:*:*:*:* ≥ 17.12.0 ≤ 17.12.11
cpe:2.3:a:oracle:primavera_gateway:*:*:*:*:*:*:*:* ≥ 18.8.0 ≤ 18.8.13
cpe:2.3:a:oracle:primavera_gateway:*:*:*:*:*:*:*:* ≥ 19.12.0 ≤ 19.12.12
cpe:2.3:a:oracle:primavera_gateway:*:*:*:*:*:*:*:* ≥ 20.12.0 ≤ 20.12.7
cpe:2.3:a:oracle:primavera_gateway:21.12.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:*:*:*:*:*:*:*:* ≥ 19.12.0 ≤ 19.12.18.0
cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:*:*:*:*:*:*:*:* ≥ 20.12.0.0 ≤ 20.12.12.0
cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:21.12.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_unifier:18.8:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_unifier:19.12:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_unifier:20.12:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_unifier:21.12:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_assortment_planning:16.0.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_fiscal_management:14.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:siebel_ui_framework:21.12:*:*:*:*:*:*:*
cpe:2.3:a:oracle:weblogic_server:12.2.1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:weblogic_server:12.2.1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:weblogic_server:14.1.1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cloudcenter:4.10.0.16:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_brm_-_elastic_charging_engine:*:*:*:*:*:*:*:* < 12.0.0.4.6
cpe:2.3:a:oracle:communications_brm_-_elastic_charging_engine:12.0.0.5.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_diameter_signaling_router:*:*:*:*:*:*:*:* ≥ 8.3.0.0 ≤ 8.5.1.0
cpe:2.3:a:oracle:communications_interactive_session_recorder:6.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_interactive_session_recorder:6.4:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_offline_mediation_controller:*:*:*:*:*:*:*:* < 12.0.0.4.4
+31 more

Affected products

Product	Versions
Apache Software Foundation · Apache Log4j2	affected log4j-core < 2.17.1

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD

🟡 Apache Log4j2 vulnerable to RCE via JDBC Appender when attacker controls configuration (Apache Software Foundation Apache Log4j2)