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Read\nAn out-of-bounds read vulnerability was discovered in the PCRE2 library in the compile_xclass_matchingpath() function of the pcre2_jit_compile.c file. 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vulnerability in PCRE2 could lead to a Denial of Service\n    condition.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-20454.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-2019-20454.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2019-20454","reference_id":"","reference_type":"","scores":[{"value":"0.00089","scoring_system":"epss","scoring_elements":"0.25415","published_at":"2026-04-01T12:55:00Z"},{"value":"0.00089","scoring_system":"epss","scoring_elements":"0.2548","published_at":"2026-04-02T12:55:00Z"},{"value":"0.00089","scoring_system":"epss","scoring_elements":"0.25518","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00089","scoring_system":"epss","scoring_elements":"0.25289","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00089","scoring_system":"epss","scoring_elements":"0.25357","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00089","scoring_system":"epss","scoring_elements":"0.25401","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00089","scoring_system":"epss","scoring_elements":"0.25412","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00089","scoring_system":"epss","scoring_elements":"0.25371","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00089","scoring_system":"epss","scoring_elements":"0.25317","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00089","scoring_system":"epss","scoring_elements":"0.25325","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00089","scoring_system":"epss","scoring_elements":"0.25315","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00089","scoring_system":"epss","scoring_elements":"0.25286","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00089","scoring_system":"epss","scoring_elements":"0.25247","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00089","scoring_system":"epss","scoring_elements":"0.25238","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00089","scoring_system":"epss","scoring_elements":"0.25194","published_at":"2026-04-29T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2019-20454"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20454","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20454"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"6.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=1735494","reference_id":"1735494","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1735494"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2019-20454","reference_id":"CVE-2019-20454","reference_type":"","scores":[],"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-20454"},{"reference_url":"https://security.gentoo.org/glsa/202006-16","reference_id":"GLSA-202006-16","reference_type":"","scores":[],"url":"https://security.gentoo.org/glsa/202006-16"},{"reference_url":"https://access.redhat.com/errata/RHSA-2020:3662","reference_id":"RHSA-2020:3662","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2020:3662"},{"reference_url":"https://access.redhat.com/errata/RHSA-2020:4539","reference_id":"RHSA-2020:4539","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2020:4539"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/995022?format=json","purl":"pkg:deb/debian/pcre2@10.36-2%2Bdeb11u1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-puhw-2qwq-gqet"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/pcre2@10.36-2%252Bdeb11u1"}],"aliases":["CVE-2019-20454"],"risk_score":3.4,"exploitability":"0.5","weighted_severity":"6.8","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-sqxs-v4xg-5kd8"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/7327?format=json","vulnerability_id":"VCID-udse-25e2-vfeb","summary":"Improper 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