{"id":"CVE-2020-36429","aliases":["EUVD-2020-23957","GHSA-5gjr-fxv3-4mwv"],"status":"published","title":"Variant_encodeJson in open62541 1.x before 1.0.4 has an out-of-bounds write for a large recursion...","description":"Variant_encodeJson in open62541 1.x before 1.0.4 has an out-of-bounds write for a large recursion depth.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.0031,"percentile":0.24102,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2021-07-20T06:47:30Z","modified":"2026-10-20T14:14:10Z","products":[{"vendor":"open62541","product":"open62541"}],"references":[{"url":"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/open62541/OSV-2020-153.yaml","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20578","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/open62541/open62541/commit/c800e2987b10bb3af6ef644b515b5d6392f8861d","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/open62541/open62541/compare/v1.0.3...v1.0.4","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36429"},{"url":"https://github.com/advisories/GHSA-5gjr-fxv3-4mwv"}],"sources":{"cve":[{"id":"CVE-2020-36429","description":"Variant_encodeJson in open62541 1.x before 1.0.4 has an out-of-bounds write for a large recursion depth.","status":"published","published":"2021-07-20T06:47:30Z","modified":"2024-08-04T17:30:07.379Z","updated_at":"2026-11-02T14:35:55.460269Z"}],"euvd":[{"id":"EUVD-2020-23957","description":"Variant_encodeJson in open62541 1.x before 1.0.4 has an out-of-bounds write for a large recursion depth.","status":"published","published":"2021-07-20T06:47:30Z","modified":"2024-08-04T17:30:07Z","updated_at":"2026-11-03T03:07:03.010139Z"}],"ghsa":[{"id":"GHSA-5gjr-fxv3-4mwv","title":"Variant_encodeJson in open62541 1.x before 1.0.4 has an out-of-bounds write for a large recursion...","description":"Variant_encodeJson in open62541 1.x before 1.0.4 has an out-of-bounds write for a large recursion depth.","status":"published","published":"2022-05-24T19:08:29Z","modified":"2023-01-30T05:00:54Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:46:17.724191Z"}],"nvd":[{"id":"CVE-2020-36429","description":"Variant_encodeJson in open62541 1.x before 1.0.4 has an out-of-bounds write for a large recursion depth.","status":"published","published":"2021-07-20T07:15:07.773Z","modified":"2026-06-17T03:15:28.38Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:P","level":"low","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:44.292752Z"}],"osv":[{"id":"CVE-2020-36429","description":"Variant_encodeJson in open62541 1.x before 1.0.4 has an out-of-bounds write for a large recursion depth.","status":"published","published":"2021-07-20T07:15:07.773Z","modified":"2026-10-20T14:14:10.604772627Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:16.936975Z"}]}}