CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2023-26151
High (7.5) in freeopcua opcua-asyncio. EPSS 1.2% chance of exploitation in the next 30 days. Fixed in asyncua 0.9.96.
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.
Severity
- EPSS
- 1.2% chance of exploitation in the next 30 days; higher than 67% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-835, CWE-400
- Published
- Modified
- Record from
- the NVD, synced
Affected
- freeopcua:opcua-asyncio
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-gfvq-mxw3-mfq3 | PyPI | asyncua | <0.9.96 | 0.9.96 |
| PYSEC-2023-190 | PyPI | asyncua | <0.9.96 | 0.9.96 |
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