CVE-2022-25304
HIGHasyncua and opcua - Denial of Service via Unlimited Chunk Reception
Title source: llmDescription
All versions of package opcua; all versions of package asyncua 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.
References (3)
Core 3
Core References
Third Party Advisory x_refsource_misc
https://security.snyk.io/vuln/SNYK-PYTHON-OPCUA-2988730
Third Party Advisory x_refsource_misc
https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-2988731
Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/FreeOpcUa/python-opcua/issues/1466
Scores
CVSS v3
7.5
EPSS
0.0106
EPSS Percentile
60.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-770
Status
published
Products (4)
asyncua_project/asyncua
opcua_project/opcua
pypi/asyncua
0 - 0.9.96PyPI
pypi/opcua
0PyPI
Published
Aug 23, 2022
Tracked Since
Feb 18, 2026