{"id":"CVE-2022-25761","aliases":["EUVD-2022-30413","GHSA-p69w-fx96-62pg"],"status":"published","title":"Denial of Service (DoS)","description":"The package open62541/open62541 before 1.2.5, from 1.3-rc1 and before 1.3.1 are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01487,"percentile":0.74389,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-770"],"published":"2022-08-23T05:07:11Z","modified":"2026-10-28T10:27:39Z","products":[{"vendor":"fedoraproject","product":"fedora"},{"vendor":"open62541","product":"open62541"}],"references":[{"url":"https://security.snyk.io/vuln/SNYK-UNMANAGED-OPEN62541OPEN62541-2988719","tags":["x_transferred","Patch","Third Party Advisory","web"]},{"url":"https://github.com/open62541/open62541/commit/b79db1ac78146fc06b0b8435773d3967de2d659c","tags":["x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/open62541/open62541/pull/5173","tags":["x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/open62541/open62541/releases/tag/v1.2.5","tags":["x_transferred","Release Notes","Third Party Advisory","web"]},{"url":"https://github.com/open62541/open62541/releases/tag/v1.3.1","tags":["x_transferred","Release Notes","Third Party Advisory","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JNUV4FDVDBQHCPMOOEVKLMQK5SLKPK2L/","tags":["vendor-advisory","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-25761","tags":["advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JNUV4FDVDBQHCPMOOEVKLMQK5SLKPK2L/"},{"url":"https://github.com/advisories/GHSA-p69w-fx96-62pg"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/25xxx/CVE-2022-25761.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2022-25761","title":"Denial of Service (DoS)","description":"The package open62541/open62541 before 1.2.5, from 1.3-rc1 and before 1.3.1 are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.","status":"published","published":"2022-08-23T05:07:11.545Z","modified":"2024-09-16T20:12:46.712Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:34:28.707644Z"}],"euvd":[{"id":"EUVD-2022-30413","description":"The package open62541/open62541 before 1.2.5, from 1.3-rc1 and before 1.3.1 are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.","status":"published","published":"2022-08-23T05:07:11Z","modified":"2024-09-16T20:12:46Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P","level":"high"}],"updated_at":"2026-11-03T00:55:15.889317Z"}],"ghsa":[{"id":"GHSA-p69w-fx96-62pg","title":"The package open62541/open62541 before 1.2.5, from 1.3-rc1 and before 1.3.1 are vulnerable to...","description":"The package open62541/open62541 before 1.2.5, from 1.3-rc1 and before 1.3.1 are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.","status":"published","published":"2022-08-24T00:00:31Z","modified":"2023-01-30T03:30:19Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:46:12.604648Z"}],"nvd":[{"id":"CVE-2022-25761","description":"The package open62541/open62541 before 1.2.5, from 1.3-rc1 and before 1.3.1 are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.","status":"published","published":"2022-08-23T05:15:08.047Z","modified":"2026-06-17T04:34:14Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:07:25.883929Z"}],"osv":[{"id":"CVE-2022-25761","title":"Denial of Service (DoS)","description":"The package open62541/open62541 before 1.2.5, from 1.3-rc1 and before 1.3.1 are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.","status":"published","published":"2022-08-23T05:07:11.545Z","modified":"2026-10-28T10:27:39.531783449Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P","level":"high"}],"updated_at":"2026-11-02T15:44:24.758293Z"}]}}