{"cve":"CVE-2023-26151","nvd":{"published":"2023-10-03T05:15:50.507","modified":"2026-06-17T05:42:47.527","status":"Modified","description":"Versions of the package asyncua before 0.9.96 are vulnerable to Denial of Service (DoS) such that an attacker can send a malformed packet and as a result, the server will enter into an infinite loop and consume excessive memory.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-835","CWE-400"],"references":["https://gist.github.com/artfire52/1540b234350795e0ecb4d672608dbec8","https://github.com/FreeOpcUa/opcua-asyncio/commit/f6603daa34a93a658f0e176cb0b9ee5a6643b262","https://github.com/FreeOpcUa/opcua-asyncio/issues/1013","https://github.com/FreeOpcUa/opcua-asyncio/pull/1039","https://github.com/FreeOpcUa/opcua-asyncio/releases/tag/v0.9.96"],"products":["freeopcua:opcua-asyncio"],"source":"nvd","synced_at":"2026-10-19T21:39:34.467980132+00:00"},"epss":{"cve":"CVE-2023-26151","score":0.01175,"percentile":0.67571,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-gfvq-mxw3-mfq3","url":"https://osv.dev/vulnerability/GHSA-gfvq-mxw3-mfq3","summary":"asyncua vulnerable to denial of service via infinite loop","modified":"2024-02-16T08:16:18.371311Z","packages":[{"ecosystem":"PyPI","name":"asyncua","purl":"pkg:pypi/asyncua","ranges":["<0.9.96"],"fixed":["0.9.96"]}]},{"id":"PYSEC-2023-190","url":"https://osv.dev/vulnerability/PYSEC-2023-190","summary":"","modified":"2026-06-10T17:00:49.484053769Z","packages":[{"ecosystem":"PyPI","name":"asyncua","purl":"pkg:pypi/asyncua","ranges":["<0.9.96"],"fixed":["0.9.96"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}