{"id":"CVE-2021-41531","aliases":["EUVD-2021-28550","GHSA-mjc7-fwvm-67h4"],"status":"published","title":"Invalid RPKI data could disable Route Origin Validation on RTR clients.","description":"NLnet Labs Routinator prior to 0.10.0 produces invalid RTR payload if an RPKI CA uses too large values in the max-length parameter in a ROA. This will lead to RTR clients such as routers to reject the RPKI data set, effectively disabling Route Origin Validation.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0093,"percentile":0.60846,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1288","CWE-20"],"published":"2021-09-21T13:23:17Z","modified":"2026-10-24T10:30:45Z","products":[{"vendor":"nlnet labs","product":"routinator"},{"vendor":"nlnetlabs","product":"routinator"}],"references":[{"url":"https://www.nlnetlabs.nl/downloads/routinator/CVE-2021-41531.txt","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41531"},{"url":"https://github.com/advisories/GHSA-mjc7-fwvm-67h4"}],"sources":{"cve":[{"id":"CVE-2021-41531","title":"Invalid RPKI data could disable Route Origin Validation on RTR clients.","description":"NLnet Labs Routinator prior to 0.10.0 produces invalid RTR payload if an RPKI CA uses too large values in the max-length parameter in a ROA. This will lead to RTR clients such as routers to reject the RPKI data set, effectively disabling Route Origin Validation.","status":"published","published":"2021-09-21T13:23:17.982Z","modified":"2024-09-16T20:27:40.85Z","cwes":["CWE-1288"],"updated_at":"2026-11-02T14:32:59.430294Z"}],"euvd":[{"id":"EUVD-2021-28550","description":"NLnet Labs Routinator prior to 0.10.0 produces invalid RTR payload if an RPKI CA uses too large values in the max-length parameter in a ROA. This will lead to RTR clients such as routers to reject the RPKI data set, effectively disabling Route Origin Validation.","status":"published","published":"2021-09-21T13:23:17Z","modified":"2024-09-16T20:27:40Z","updated_at":"2026-11-03T00:55:13.588552Z"}],"ghsa":[{"id":"GHSA-mjc7-fwvm-67h4","title":"NLnet Labs Routinator prior to 0.10.0 produces invalid RTR payload if an RPKI CA uses too large...","description":"NLnet Labs Routinator prior to 0.10.0 produces invalid RTR payload if an RPKI CA uses too large values in the max-length parameter in a ROA. This will lead to RTR clients such as routers to reject the RPKI data set, effectively disabling Route Origin Validation.","status":"published","published":"2022-05-24T19:15:22Z","modified":"2023-01-30T05:02:26Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:46:38.066268Z"}],"nvd":[{"id":"CVE-2021-41531","description":"NLnet Labs Routinator prior to 0.10.0 produces invalid RTR payload if an RPKI CA uses too large values in the max-length parameter in a ROA. This will lead to RTR clients such as routers to reject the RPKI data set, effectively disabling Route Origin Validation.","status":"published","published":"2021-09-21T14:15:07.663Z","modified":"2026-06-17T04:08:35.96Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-1288","CWE-20"],"updated_at":"2026-11-02T14:06:58.933037Z"}],"osv":[{"id":"CVE-2021-41531","description":"NLnet Labs Routinator prior to 0.10.0 produces invalid RTR payload if an RPKI CA uses too large values in the max-length parameter in a ROA. This will lead to RTR clients such as routers to reject the RPKI data set, effectively disabling Route Origin Validation.","status":"published","published":"2021-09-21T14:15:07.663Z","modified":"2026-10-24T10:30:45.511754925Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:21.557945Z"}]}}