{"id":"CVE-2020-16162","aliases":["EUVD-2020-8128","GHSA-gcmr-993x-2g5q"],"status":"disputed","title":"** DISPUTED ** An issue was discovered in RIPE NCC RPKI Validator 3.x through 3.1-2020.07.06.14...","description":"An issue was discovered in RIPE NCC RPKI Validator 3.x through 3.1-2020.07.06.14.28. Missing validation checks on CRL presence or CRL staleness in the X509-based RPKI certificate-tree validation procedure allow remote attackers to bypass intended access restrictions by using revoked certificates. NOTE: there may be counterarguments related to backwards compatibility","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":0.00744,"percentile":0.55045,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-295"],"published":"2020-07-30T15:16:55Z","modified":"2026-10-20T10:51:59Z","products":[{"vendor":"ripe","product":"rpki_validator_3"}],"references":[{"url":"https://github.com/RIPE-NCC/rpki-validator-3/issues/162","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://github.com/RIPE-NCC/rpki-validator-3/issues/232","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-16162"},{"url":"https://github.com/advisories/GHSA-gcmr-993x-2g5q"}],"sources":{"cve":[{"id":"CVE-2020-16162","description":"An issue was discovered in RIPE NCC RPKI Validator 3.x through 3.1-2020.07.06.14.28. Missing validation checks on CRL presence or CRL staleness in the X509-based RPKI certificate-tree validation procedure allow remote attackers to bypass intended access restrictions by using revoked certificates. NOTE: there may be counterarguments related to backwards compatibility","status":"disputed","published":"2020-07-30T15:16:55Z","modified":"2024-08-04T13:37:54.173Z","updated_at":"2026-11-02T14:35:59.116379Z"}],"euvd":[{"id":"EUVD-2020-8128","description":"An issue was discovered in RIPE NCC RPKI Validator 3.x through 3.1-2020.07.06.14.28. Missing validation checks on CRL presence or CRL staleness in the X509-based RPKI certificate-tree validation procedure allow remote attackers to bypass intended access restrictions by using revoked certificates. NOTE: there may be counterarguments related to backwards compatibility","status":"published","published":"2020-07-30T15:16:55Z","modified":"2024-08-04T13:37:54Z","updated_at":"2026-11-03T03:07:28.673063Z"}],"ghsa":[{"id":"GHSA-gcmr-993x-2g5q","title":"** DISPUTED ** An issue was discovered in RIPE NCC RPKI Validator 3.x through 3.1-2020.07.06.14...","description":"** DISPUTED ** An issue was discovered in RIPE NCC RPKI Validator 3.x through 3.1-2020.07.06.14.28. Missing validation checks on CRL presence or CRL staleness in the X509-based RPKI certificate-tree validation procedure allow remote attackers to bypass intended access restrictions by using revoked certificates. NOTE: there may be counterarguments related to backwards compatibility.","status":"published","published":"2022-05-24T17:24:43Z","modified":"2024-03-30T05:01:41Z","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"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:55:44.65747Z"}],"nvd":[{"id":"CVE-2020-16162","description":"An issue was discovered in RIPE NCC RPKI Validator 3.x through 3.1-2020.07.06.14.28. Missing validation checks on CRL presence or CRL staleness in the X509-based RPKI certificate-tree validation procedure allow remote attackers to bypass intended access restrictions by using revoked certificates. NOTE: there may be counterarguments related to backwards compatibility","status":"disputed","published":"2020-07-30T16:15:11.85Z","modified":"2026-06-17T02:57:48.683Z","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-295"],"updated_at":"2026-11-02T14:06:10.994748Z"}],"osv":[{"id":"CVE-2020-16162","description":"An issue was discovered in RIPE NCC RPKI Validator 3.x through 3.1-2020.07.06.14.28. Missing validation checks on CRL presence or CRL staleness in the X509-based RPKI certificate-tree validation procedure allow remote attackers to bypass intended access restrictions by using revoked certificates. NOTE: there may be counterarguments related to backwards compatibility","status":"published","published":"2020-07-30T16:15:11.85Z","modified":"2026-10-20T10:51:59.066997788Z","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":"2026-11-02T15:44:14.828228Z"}]}}