--- title: "CVE-2021-44832: Apache Log4j2 vulnerable to RCE via JDBC… | CubePath" 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…" language: en source: https://cubepath.com/security/cve/CVE-2021-44832 --- # CVE-2021-44832: Apache Log4j2 vulnerable to RCE via JDBC… | CubePath ## 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. Official description from the CVE record, published by apache. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2021-44832) ## Key data ### CVSS 3.1 Medium 6.6 Score published by CISA-ADP in the CVE record. CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H | Metric | Value | What it means | | ---------------------- | --------- | ----------------------------------------------------------------------------------------- | | Attack vector | Network | The vulnerable component can be reached over a network, possibly from the Internet. | | Attack complexity | High | The attack depends on conditions outside the attacker's control, so it takes preparation. | | Privileges required | High | An account with significant privileges, such as an administrator, is needed. | | User interaction | None | No action from any user is needed. | | Scope | Unchanged | The impact stays within the vulnerable component. | | Confidentiality impact | High | Serious or total effect on the secrecy of data. | | Integrity impact | High | Serious or total effect on the trustworthiness of data. | | Availability impact | High | Serious or total effect on availability. | CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) . ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.97906 (97.9% probability) Percentile 99.9% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA assessment as of May 29, 2026 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Automatable no Technical impact total ### Weakness (CWE) CWE catalog version 5.0. CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license. - [CWE-20](https://cwe.mitre.org/data/definitions/20.html) Improper Input Validation - [CWE-74](https://cwe.mitre.org/data/definitions/74.html) Improper Neutralization of Special Elements in Output Used by a Downstream Component ## Affected products Products listed in the CVE record, as the CNA published them. - Apache Log4j2 - affected: log4j-core up to before 2.17.1 ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [20211210 Vulnerabilities in Apache Log4j Library Affecting Cisco Products: December 2021](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd) (tools.cisco.com) vendor-advisory - [lists.apache.org/thread/s1o5vlo78ypqxnzn6p8zf6t9shtq5143](https://lists.apache.org/thread/s1o5vlo78ypqxnzn6p8zf6t9shtq5143) - [issues.apache.org/jira/browse/LOG4J2-3293](https://issues.apache.org/jira/browse/LOG4J2-3293) - [\[oss-security\] 20211228 CVE-2021-44832: Apache Log4j2 vulnerable to RCE via JDBC Appender when attacker controls configuration](http://www.openwall.com/lists/oss-security/2021/12/28/1) (openwall.com) mailing-list - [\[debian-lts-announce\] 20211229 \[SECURITY\] \[DLA 2870-1\] apache-log4j2 security update](https://lists.debian.org/debian-lts-announce/2021/12/msg00036.html) (lists.debian.org) mailing-list - [cert-portal.siemens.com/productcert/pdf/ssa-784507.pdf](https://cert-portal.siemens.com/productcert/pdf/ssa-784507.pdf) - [FEDORA-2021-c6f471ce0f](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EVV25FXL4FU5X6X5BSL7RLQ7T6F65MRA/) (lists.fedoraproject.org) vendor-advisory - [FEDORA-2021-1bd9151bab](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T57MPJUW3MA6QGWZRTMCHHMMPQNVKGFC/) (lists.fedoraproject.org) vendor-advisory - [oracle.com/security-alerts/cpujan2022.html](https://www.oracle.com/security-alerts/cpujan2022.html) - [security.netapp.com/advisory/ntap-20220104-0001](https://security.netapp.com/advisory/ntap-20220104-0001/) - [oracle.com/security-alerts/cpuapr2022.html](https://www.oracle.com/security-alerts/cpuapr2022.html) - [oracle.com/security-alerts/cpujul2022.html](https://www.oracle.com/security-alerts/cpujul2022.html) ## Timeline 1. ID reserved Dec 11, 2021 2. Record published Dec 28, 2021 3. Record last updated May 29, 2026 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:03 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)