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This issue affects Apache Log4j before 2. Affected users are recommended to update to Log4j 2.x. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-26464.json","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-26464.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2023-26464","reference_id":"","reference_type":"","scores":[{"value":"0.00147","scoring_system":"epss","scoring_elements":"0.34697","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00147","scoring_system":"epss","scoring_elements":"0.3479","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00147","scoring_system":"epss","scoring_elements":"0.34808","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00147","scoring_system":"epss","scoring_elements":"0.35041","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00147","scoring_system":"epss","scoring_elements":"0.35088","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00147","scoring_system":"epss","scoring_elements":"0.35102","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00147","scoring_system":"epss","scoring_elements":"0.35066","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00147","scoring_system":"epss","scoring_elements":"0.3509","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00147","scoring_system":"epss","scoring_elements":"0.35142","published_at":"2026-04-02T12:55:00Z"},{"value":"0.00147","scoring_system":"epss","scoring_elements":"0.35125","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00147","scoring_system":"epss","scoring_elements":"0.3512","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00147","scoring_system":"epss","scoring_elements":"0.35094","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00147","scoring_system":"epss","scoring_elements":"0.35049","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00147","scoring_system":"epss","scoring_elements":"0.35171","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00151","scoring_system":"epss","scoring_elements":"0.35224","published_at":"2026-05-12T12:55:00Z"},{"value":"0.00151","scoring_system":"epss","scoring_elements":"0.35198","published_at":"2026-05-05T12:55:00Z"},{"value":"0.00151","scoring_system":"epss","scoring_elements":"0.35268","published_at":"2026-05-07T12:55:00Z"},{"value":"0.00151","scoring_system":"epss","scoring_elements":"0.35295","published_at":"2026-05-09T12:55:00Z"},{"value":"0.00151","scoring_system":"epss","scoring_elements":"0.35202","published_at":"2026-05-11T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2023-26464"},{"reference_url":"https://github.com/apache/logging-log4j2","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/apache/logging-log4j2"},{"reference_url":"https://lists.apache.org/thread/wkx6grrcjkh86crr49p4blc1v1nflj3t","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-10-23T16:39:52Z/"}],"url":"https://lists.apache.org/thread/wkx6grrcjkh86crr49p4blc1v1nflj3t"},{"reference_url":"https://security.netapp.com/advisory/ntap-20230505-0008","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://security.netapp.com/advisory/ntap-20230505-0008"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2182864","reference_id":"2182864","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2182864"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2023-26464","reference_id":"CVE-2023-26464","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-26464"},{"reference_url":"https://github.com/advisories/GHSA-vp98-w2p3-mv35","reference_id":"GHSA-vp98-w2p3-mv35","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-vp98-w2p3-mv35"},{"reference_url":"https://security.netapp.com/advisory/ntap-20230505-0008/","reference_id":"ntap-20230505-0008","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"Track","scoring_system":"ssvc","sc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