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The identifier VDB-213717 was assigned to this vulnerability.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-4240","reference_id":"","reference_type":"","scores":[{"value":"0.00252","scoring_system":"epss","scoring_elements":"0.4868","published_at":"2026-06-04T12:55:00Z"},{"value":"0.00252","scoring_system":"epss","scoring_elements":"0.48717","published_at":"2026-06-09T12:55:00Z"},{"value":"0.00252","scoring_system":"epss","scoring_elements":"0.48702","published_at":"2026-06-08T12:55:00Z"},{"value":"0.00252","scoring_system":"epss","scoring_elements":"0.48731","published_at":"2026-06-07T12:55:00Z"},{"value":"0.00252","scoring_system":"epss","scoring_elements":"0.4875","published_at":"2026-06-06T12:55:00Z"},{"value":"0.00252","scoring_system":"epss","scoring_elements":"0.48741","published_at":"2026-06-05T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-4240"},{"reference_url":"https://github.com/phpservermon/phpservermon","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/phpservermon/phpservermon"},{"reference_url":"https://github.com/phpservermon/phpservermon/commit/3daa804d5f56c55b3ae13bfac368bb84ec632193","reference_id":"","reference_type":"","scores":[{"value":"2.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-14T16:57:36Z/"}],"url":"https://github.com/phpservermon/phpservermon/commit/3daa804d5f56c55b3ae13bfac368bb84ec632193"},{"reference_url":"https://huntr.dev/bounties/2-phpservermon/phpservermon","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://huntr.dev/bounties/2-phpservermon/phpservermon"},{"reference_url":"https://huntr.dev/bounties/2-phpservermon/phpservermon/","reference_id":"","reference_type":"","scores":[{"value":"2.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-14T16:57:36Z/"}],"url":"https://huntr.dev/bounties/2-phpservermon/phpservermon/"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-4240","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-4240"},{"reference_url":"https://vuldb.com/?id.213717","reference_id":"","reference_type":"","scores":[{"value":"2.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-14T16:57:36Z/"}],"url":"https://vuldb.com/?id.213717"},{"reference_url":"https://github.com/advisories/GHSA-97w9-gcc7-vr8g","reference_id":"GHSA-97w9-gcc7-vr8g","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-97w9-gcc7-vr8g"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/59799?format=json","purl":"pkg:composer/phpservermon/phpservermon@3.6.0","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:composer/phpservermon/phpservermon@3.6.0"}],"aliases":["CVE-2021-4240","GHSA-97w9-gcc7-vr8g"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-a1qw-jeze-97gc"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/110288?format=json","vulnerability_id":"VCID-a9cq-fjyd-nqfw","summary":"PHPServerMon PRNG has Insufficient Entropy\nA vulnerability, which was classified as problematic, was found in phpservermon. 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The identifier of this vulnerability is VDB-213744.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-4241","reference_id":"","reference_type":"","scores":[{"value":"0.00295","scoring_system":"epss","scoring_elements":"0.5308","published_at":"2026-06-04T12:55:00Z"},{"value":"0.00295","scoring_system":"epss","scoring_elements":"0.53149","published_at":"2026-06-06T12:55:00Z"},{"value":"0.00295","scoring_system":"epss","scoring_elements":"0.53141","published_at":"2026-06-05T12:55:00Z"},{"value":"0.00295","scoring_system":"epss","scoring_elements":"0.53129","published_at":"2026-06-09T12:55:00Z"},{"value":"0.00295","scoring_system":"epss","scoring_elements":"0.53104","published_at":"2026-06-08T12:55:00Z"},{"value":"0.00295","scoring_system":"epss","scoring_elements":"0.5313","published_at":"2026-06-07T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-4241"},{"reference_url":"https://github.com/phpservermon/phpservermon","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/phpservermon/phpservermon"},{"reference_url":"https://github.com/phpservermon/phpservermon/commit/bb10a5f3c68527c58073258cb12446782d223bc3","reference_id":"","reference_type":"","scores":[{"value":"2.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-14T16:57:32Z/"}],"url":"https://github.com/phpservermon/phpservermon/commit/bb10a5f3c68527c58073258cb12446782d223bc3"},{"reference_url":"https://huntr.dev/bounties/1-phpservermon/phpservermon","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://huntr.dev/bounties/1-phpservermon/phpservermon"},{"reference_url":"https://huntr.dev/bounties/1-phpservermon/phpservermon/","reference_id":"","reference_type":"","scores":[{"value":"2.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-14T16:57:32Z/"}],"url":"https://huntr.dev/bounties/1-phpservermon/phpservermon/"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-4241","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-4241"},{"reference_url":"https://vuldb.com/?id.213744","reference_id":"","reference_type":"","scores":[{"value":"2.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-14T16:57:32Z/"}],"url":"https://vuldb.com/?id.213744"},{"reference_url":"https://github.com/advisories/GHSA-hc4j-7mqg-cxjj","reference_id":"GHSA-hc4j-7mqg-cxjj","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-hc4j-7mqg-cxjj"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/59799?format=json","purl":"pkg:composer/phpservermon/phpservermon@3.6.0","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:composer/phpservermon/phpservermon@3.6.0"}],"aliases":["CVE-2021-4241","GHSA-hc4j-7mqg-cxjj"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-a9cq-fjyd-nqfw"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/41859?format=json","vulnerability_id":"VCID-k95m-h7dp-9bac","summary":"Improper 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