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Intelligence for Africa and the Gulf

AEGLIX vulnerability intelligence

CVE-2021-45046

CRITICAL · CVSS 9.0 · Analyzed

Published: 2021-12-14 · Updated: 2026-06-17 · Source: NVD

Vulnerability overview

It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. This could allows attackers with control over Thread Context Map (MDC) input data when the logging configuration uses a non-default Pattern Layout with either a Context Lookup (for example, $${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) to craft malicious input data using a JNDI Lookup pattern resulting in an information leak and remote code execution in some environments and local code execution in all environments. Log4j 2.16.0 (Java 8) and 2.12.2 (Java 7) fix this issue by removing support for message lookup patterns and disabling JNDI functionality by default.

Severity and scoring

CVSS score
9.0 · CRITICAL
CVSS version
3.1
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-917

CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.

Known exploitation and remediation

Listed in CISA’s Known Exploited Vulnerabilities catalog.

Affected product
Apache · Log4j2
Added to catalog
2023-05-01
Required action
Apply updates per vendor instructions.
CISA remediation due date
2023-05-22

CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.

Verify affected versions and patch availability in the vendor advisory before making changes.

Affected products and versions

  • cpe:2.3:a:apache:log4j:*:*:*:*:*:*:*:*

    From (inclusive): 2.0.1

    Before (exclusive): 2.12.2

  • cpe:2.3:a:apache:log4j:*:*:*:*:*:*:*:*

    From (inclusive): 2.13.0

    Before (exclusive): 2.16.0

  • cpe:2.3:a:apache:log4j:2.0:-:*:*:*:*:*:*

  • 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:cvat:computer_vision_annotation_tool:-:*:*:*:*:*:*:*

  • cpe:2.3:a:intel:audio_development_kit:-:*:*:*:*:*:*:*

  • cpe:2.3:a:intel:datacenter_manager:-:*:*:*:*:*:*:*

  • cpe:2.3:a:intel:genomics_kernel_library:-:*:*:*:*:*:*:*

  • cpe:2.3:a:intel:oneapi:-:*:*:*:*:eclipse:*:*

  • cpe:2.3:a:intel:secure_device_onboard:-:*:*:*:*:*:*:*

  • cpe:2.3:a:intel:sensor_solution_firmware_development_kit:-:*:*:*:*:*:*:*

  • cpe:2.3:a:intel:system_debugger:-:*:*:*:*:*:*:*

  • cpe:2.3:a:intel:system_studio:-:*:*:*:*:*:*:*

  • cpe:2.3:o:siemens:sppa-t3000_ses3000_firmware:*:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:captial:*:*:*:*:*:*:*:*

    Before (exclusive): 2019.1

  • cpe:2.3:a:siemens:captial:2019.1:-:*:*:*:*:*:*

  • cpe:2.3:a:siemens:captial:2019.1:sp1912:*:*:*:*:*:*

  • cpe:2.3:a:siemens:comos:*:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:desigo_cc_advanced_reports:4.0:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:desigo_cc_advanced_reports:4.1:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:desigo_cc_advanced_reports:4.2:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:desigo_cc_advanced_reports:5.0:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:desigo_cc_advanced_reports:5.1:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:desigo_cc_info_center:5.0:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:desigo_cc_info_center:5.1:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:e-car_operation_center:*:*:*:*:*:*:*:*

    Before (exclusive): 2021-12-13

  • cpe:2.3:a:siemens:energy_engage:3.1:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:energyip:8.5:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:energyip:8.6:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:energyip:8.7:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:energyip:9.0:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:energyip_prepay:3.7:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:energyip_prepay:3.8:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:gma-manager:*:*:*:*:*:*:*:*

    Before (exclusive): 8.6.2j-398

  • cpe:2.3:a:siemens:head-end_system_universal_device_integration_system:*:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:industrial_edge_management:*:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:industrial_edge_management_hub:*:*:*:*:*:*:*:*

    Before (exclusive): 2021-12-13

  • cpe:2.3:a:siemens:logo\!_soft_comfort:*:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:mendix:*:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:mindsphere:*:*:*:*:*:*:*:*

    Before (exclusive): 2021-12-11

  • cpe:2.3:a:siemens:navigator:*:*:*:*:*:*:*:*

    Before (exclusive): 2021-12-13

  • cpe:2.3:a:siemens:nx:*:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:opcenter_intelligence:*:*:*:*:*:*:*:*

    Through (inclusive): 3.2

  • cpe:2.3:a:siemens:operation_scheduler:*:*:*:*:*:*:*:*

    Through (inclusive): 1.1.3

  • cpe:2.3:a:siemens:sentron_powermanager:4.1:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:sentron_powermanager:4.2:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:siguard_dsa:4.2:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:siguard_dsa:4.3:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:siguard_dsa:4.4:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:sipass_integrated:2.80:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:sipass_integrated:2.85:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:siveillance_command:*:*:*:*:*:*:*:*

    Through (inclusive): 4.16.2.1

  • cpe:2.3:a:siemens:siveillance_control_pro:*:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:siveillance_identity:1.5:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:siveillance_identity:1.6:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:siveillance_vantage:*:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:siveillance_viewpoint:*:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:solid_edge_cam_pro:*:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:solid_edge_harness_design:*:*:*:*:*:*:*:*

    Before (exclusive): 2020

  • cpe:2.3:a:siemens:solid_edge_harness_design:2020:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:solid_edge_harness_design:2020:-:*:*:*:*:*:*

  • cpe:2.3:a:siemens:solid_edge_harness_design:2020:sp2002:*:*:*:*:*:*

  • cpe:2.3:a:siemens:spectrum_power_4:*:*:*:*:*:*:*:*

    Before (exclusive): 4.70

  • cpe:2.3:a:siemens:spectrum_power_4:4.70:-:*:*:*:*:*:*

  • cpe:2.3:a:siemens:spectrum_power_4:4.70:sp7:*:*:*:*:*:*

  • cpe:2.3:a:siemens:spectrum_power_4:4.70:sp8:*:*:*:*:*:*

  • cpe:2.3:a:siemens:spectrum_power_7:*:*:*:*:*:*:*:*

    Before (exclusive): 2.30

  • cpe:2.3:a:siemens:spectrum_power_7:2.30:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:spectrum_power_7:2.30:-:*:*:*:*:*:*

  • cpe:2.3:a:siemens:spectrum_power_7:2.30:sp2:*:*:*:*:*:*

  • cpe:2.3:a:siemens:teamcenter:*:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:tracealertserverplus:*:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:vesys:*:*:*:*:*:*:*:*

    Before (exclusive): 2019.1

  • cpe:2.3:a:siemens:vesys:2019.1:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:vesys:2019.1:-:*:*:*:*:*:*

  • cpe:2.3:a:siemens:vesys:2019.1:sp1912:*:*:*:*:*:*

  • cpe:2.3:a:siemens:xpedition_enterprise:-:*:*:*:*:*:*:*

  • cpe:2.3:a:siemens:xpedition_package_integrator:-:*:*:*:*:*:*:*

  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

  • cpe:2.3:a:sonicwall:email_security:*:*:*:*:*:*:*:*

    Before (exclusive): 10.0.12

  • cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

  • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

  • cpe:2.3:o:siemens:6bk1602-0aa12-0tp0_firmware:*:*:*:*:*:*:*:*

    Before (exclusive): 2.7.0

  • cpe:2.3:o:siemens:6bk1602-0aa22-0tp0_firmware:*:*:*:*:*:*:*:*

    Before (exclusive): 2.7.0

  • cpe:2.3:o:siemens:6bk1602-0aa32-0tp0_firmware:*:*:*:*:*:*:*:*

    Before (exclusive): 2.7.0

  • cpe:2.3:o:siemens:6bk1602-0aa42-0tp0_firmware:*:*:*:*:*:*:*:*

    Before (exclusive): 2.7.0

  • cpe:2.3:o:siemens:6bk1602-0aa52-0tp0_firmware:*:*:*:*:*:*:*:*

    Before (exclusive): 2.7.0

These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.

Advisories and references

Explore official sources

Read the official NVD record ↗

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