CVE-2023-26151

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.03% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 61.1% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2023-10-03 05:00Z2 YR AGO

Last updated

2024-09-20 14:16Z1 YR AGO

Reserved

2023-02-20

Assigning CNA

snyk

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P

Weaknesses

• CWE-400Uncontrolled Resource ConsumptionClass
• CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')Base

Data version

5.1

Document digest

02664d9b13b27711c8314f34821c0032a132f9eccda9cd6b760aff6e9ff14a49

• security.snyk.iohttps://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-5673709
• gist.github.comhttps://gist.github.com/artfire52/1540b234350795e0ecb4d672608dbec8
• github.comhttps://github.com/FreeOpcUa/opcua-asyncio/issues/1013
• github.comhttps://github.com/FreeOpcUa/opcua-asyncio/pull/1039
• github.comhttps://github.com/FreeOpcUa/opcua-asyncio/commit/f6603daa34a93a658f0e176cb0b9ee5a6643b262
• github.comhttps://github.com/FreeOpcUa/opcua-asyncio/releases/tag/v0.9.96