{"id":"CVE-2022-25903","aliases":["EUVD-2022-6567","GHSA-hgxq-hcrm-c5pm"],"status":"published","title":"Denial of Service (DoS)","description":"The package opcua from 0.0.0 are vulnerable to Denial of Service (DoS) via the ExtensionObjects and Variants objects, when it allows unlimited nesting levels, which could result in a stack overflow even if the message size is less than the maximum allowed.","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":"2026-11-09","score":0.01428,"percentile":0.73173,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-787"],"published":"2022-08-24T05:00:19Z","modified":"2026-06-17T04:34:28Z","fixes":[{"ecosystem":"crates.io","package":"opcua","fixed_in":["0.11.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"crates.io","package":"opcua","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.11.0"}]}]},{"source":"osv","ecosystem":"crates.io","package":"opcua","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.11.0"}]}]}],"products":[{"vendor":"opcua_project","product":"opcua"}],"references":[{"url":"https://github.com/locka99/opcua/pull/216","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","web"]},{"url":"https://security.snyk.io/vuln/SNYK-RUST-OPCUA-2988750","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","web"]},{"url":"https://github.com/locka99/opcua/pull/216/commits/e75dada28a40c3fefc4aeee4cdc272e1b748f8dd","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-25903","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-hgxq-hcrm-c5pm"},{"url":"https://github.com/locka99/opcua","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2022-25903","title":"Denial of Service (DoS)","description":"The package opcua from 0.0.0 are vulnerable to Denial of Service (DoS) via the ExtensionObjects and Variants objects, when it allows unlimited nesting levels, which could result in a stack overflow even if the message size is less than the maximum allowed.","status":"published","published":"2022-08-24T05:00:19.697Z","modified":"2024-09-17T01:45:33.657Z","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":"2026-11-02T14:34:28.374916Z"}],"euvd":[{"id":"EUVD-2022-6567","description":"The package opcua from 0.0.0 are vulnerable to Denial of Service (DoS) via the ExtensionObjects and Variants objects, when it allows unlimited nesting levels, which could result in a stack overflow even if the message size is less than the maximum allowed.","status":"published","published":"2022-08-24T05:00:19Z","modified":"2024-09-17T01:45:33Z","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":"2026-11-03T00:28:47.09844Z"}],"ghsa":[{"id":"GHSA-hgxq-hcrm-c5pm","title":"opcua Vulnerable to Out-of-bounds Write","description":"The package opcua from 0.0.0 until 0.11.0 is vulnerable to Denial of Service (DoS) via the ExtensionObjects and Variants objects, when it allows unlimited nesting levels, which could result in a stack overflow even if the message size is less than the maximum allowed.","status":"published","published":"2022-08-25T00:00:29Z","modified":"2023-01-30T05:01:39Z","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-787"],"updated_at":"2026-11-02T14:36:27.500048Z"}],"nvd":[{"id":"CVE-2022-25903","description":"The package opcua from 0.0.0 are vulnerable to Denial of Service (DoS) via the ExtensionObjects and Variants objects, when it allows unlimited nesting levels, which could result in a stack overflow even if the message size is less than the maximum allowed.","status":"published","published":"2022-08-24T05:15:07.377Z","modified":"2026-06-17T04:34:28.307Z","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-787"],"updated_at":"2026-11-02T14:07:25.883929Z"}],"osv":[{"id":"GHSA-hgxq-hcrm-c5pm","title":"opcua Vulnerable to Out-of-bounds Write","description":"The package opcua from 0.0.0 until 0.11.0 is vulnerable to Denial of Service (DoS) via the ExtensionObjects and Variants objects, when it allows unlimited nesting levels, which could result in a stack overflow even if the message size is less than the maximum allowed.","status":"published","published":"2022-08-25T00:00:29Z","modified":"2023-11-08T04:08:51.580146Z","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-787"],"updated_at":"2026-11-02T15:46:49.28217Z"}]}}