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Severity across 3 analyzed records
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As of 09/29/2026, within CyStack's analyzed data, Apache Log4j has 0 security vulnerabilities published in the last 90 days. Of these, 0 are rated High or Critical. None of these vulnerabilities is listed in the CISA KEV catalog. CyStack recommends that organizations and individual users remediate applicable vulnerabilities as soon as possible.
CyStack does not yet have sufficient official-source data to identify the latest version of Apache Log4j and determine which vulnerabilities affect that version.
CyStack VulnScan continuously discovers assets, validates vulnerabilities, and helps security teams prioritize remediation across the organization.
Explore CyStack VulnScan| Vulnerability | Exploitation status | Fix | Published | Severity |
|---|---|---|---|---|
CVE-2023-26464Apache Log4j 1.x (EOL) allows DoS in Chainsaw and SocketAppender | Exploitation statusNot known exploited | FixYes | Published03/10/2023 | SeverityHigh |
CVE-2021-45046Apache Log4j2 Thread Context Message Pattern and Context Lookup Pattern vulnerable to a denial of service attack | Exploitation statusKEV | FixYes | Published12/14/2021 | SeverityCritical |
CVE-2017-5645 | Exploitation statusNot confirmed | FixNot confirmed | Published04/17/2017 | SeverityUnknown |
