CRITICALCVSS 10.0Actively exploited · CISA KEV since 2021-12-10Vulnerability

CVE-2021-44228

Apache Log4j2 contains a vulnerability where JNDI features do not protect against attacker-controlled JNDI-related endpoints, allowing for remote code execution.

Properties

Euvd product
Apache Log4j2
Vulnerability name
Apache Log4j2 Remote Code Execution Vulnerability
First seen
2025-10-21T23:25:23+00:00
Cvss score
10
Epss score
0.99999
Last seen
2026-10-19T12:00:27+00:00
Year
2021
Due date
2021-12-24
Euvd assigner
apache
Retrieved at
2026-10-21T01:24:47+00:00
Exploited euvd since
2021-12-10T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2021-12-10
Euvd base score version
3.1
Score
10
Fetched at
2026-10-20T10:36:20+00:00
Euvd vendor
Apache Software Foundation
Updated at
2026-03-02T09:27:22.792006+00:00
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Related Entities (391 · showing 30)

AFFECTS_PRODUCT (381 · showing 20)

→[Product]cpe:2.3:a:siemens:siveillance_viewpoint:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:percussion:rhythmyx:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:apple:xcode:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:cisco:wan_automation_engine:7.4:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:cisco:unified_intelligence_center:12.6\(1\):es02:*:*:*:*:*:*
→[Product]cpe:2.3:a:cisco:unified_sip_proxy:010.002\(001\):*:*:*:*:*:*:*
→[Product]cpe:2.3:a:cisco:unified_contact_center_express:12.6\(2\):*:*:*:*:*:*:*
→[Product]cpe:2.3:a:cisco:wan_automation_engine:7.1.3:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:cisco:video_surveillance_manager:7.14\(2.26\):*:*:*:*:*:*:*
→[Product]cpe:2.3:a:cisco:unified_customer_voice_portal:12.6\(1\):*:*:*:*:*:*:*
→[Product]cpe:2.3:a:cisco:unified_contact_center_express:12.6\(1\):*:*:*:*:*:*:*
→[Product]cpe:2.3:a:cisco:unified_intelligence_center:12.6\(2\):-:*:*:*:*:*:*
→[Product]cpe:2.3:a:cisco:unified_communications_manager:11.5\(1.22900.28\):*:*:*:*:*:*:*
→[Product]cpe:2.3:a:cisco:wan_automation_engine:7.2.2:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:snowsoftware:vm_access_proxy:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:cisco:wan_automation_engine:7.2.3:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:cisco:unified_customer_voice_portal:12.0\(1\):*:*:*:*:*:*:*
→[Product]cpe:2.3:a:cisco:video_surveillance_manager:7.14\(1.26\):*:*:*:*:*:*:*
→[Product]cpe:2.3:a:cisco:unified_customer_voice_portal:12.5\(1\):*:*:*:*:*:*:*
→[Product]cpe:2.3:a:cisco:unity_connection:11.5:*:*:*:*:*:*:*

HAS_WEAKNESS (4)

→[Weakness]Deserialization of Untrusted Data
→[Weakness]Uncontrolled Resource Consumption
→[Weakness]Improper Input Validation
→[Weakness]Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')

MENTIONED_IN (4)

→[Campaign]Chinese-Speaking Operator Uses AI Agents to Target Government and Education Systems Across Asia
→[Campaign]skynox7: Proxyjacking Edge Devices Into Residential Proxies
→[Campaign]DragonForce Ransomware Profile: From Affiliate Program to Cybercrime Cartel
→[Campaign]The Scalpel vs. The Sledgehammer: Lessons in Precision Triage from the .conf26 SOC

DESCRIBES (1)

←[KEVEntry]Apache Log4j2 Remote Code Execution Vulnerability

INVOLVES (1)

←[Signal]kev_added · 2021-12-10

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CVE-2021-44228 (CVSS 10) — Ninja Signal Threat Intelligence | Ninja Signal