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.
CVE-2023-26151
This medium-severity CVE scores 5.3 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 65% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.3
- EG Score
- 5.3(medium)
- EPSS
- 59.7%
- KEV
- Not listed
Published
October 3, 2023
Last Modified
November 21, 2024
References (12)
- report@snykhttps://gist.github.com/artfire52/1540b234350795e0ecb4d672608dbec8
- report@snykhttps://github.com/FreeOpcUa/opcua-asyncio/commit/f6603daa34a93a658f0e176cb0b9ee5a6643b262
- report@snykhttps://github.com/FreeOpcUa/opcua-asyncio/issues/1013
- report@snykhttps://github.com/FreeOpcUa/opcua-asyncio/pull/1039
- report@snykhttps://github.com/FreeOpcUa/opcua-asyncio/releases/tag/v0.9.96
- report@snykhttps://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-5673709
- af854a3a-2127-422b-91ae-364da2661108https://gist.github.com/artfire52/1540b234350795e0ecb4d672608dbec8
- af854a3a-2127-422b-91ae-364da2661108https://github.com/FreeOpcUa/opcua-asyncio/commit/f6603daa34a93a658f0e176cb0b9ee5a6643b262
- af854a3a-2127-422b-91ae-364da2661108https://github.com/FreeOpcUa/opcua-asyncio/issues/1013
- af854a3a-2127-422b-91ae-364da2661108https://github.com/FreeOpcUa/opcua-asyncio/pull/1039
- af854a3a-2127-422b-91ae-364da2661108https://github.com/FreeOpcUa/opcua-asyncio/releases/tag/v0.9.96
- af854a3a-2127-422b-91ae-364da2661108https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-5673709
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| asyncua | 0.5.0 ... 0.9.13 (64 versions) | 0.9.96 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 43× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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Related CVEs(same CWE)
Same CWE
10 shownCWE-400
Frequently asked(5)
What is CVE-2023-26151?
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