CVE-2026-67861: n/a
A denial of service vulnerability exists in open62541 version 1.5.5 and earlier via the UA_Client_getRemoteDataTypes component. This flaw allows a remote attacker to cause application unavailability without requiring authentication.
AI Analysis
Technical Summary
CVE-2026-67861 describes a denial of service vulnerability in the open62541 OPC UA client library, specifically affecting versions 1.5.5 and earlier. The issue arises in the UA_Client_getRemoteDataTypes function, which can be exploited remotely without privileges or user interaction to cause a denial of service condition. The CVSS v3.1 base score is 7.5, indicating high severity due to the ease of attack and impact on availability.
Potential Impact
An unauthenticated remote attacker can trigger a denial of service, causing the affected application using open62541 to become unavailable. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is documented at this time.
CVE-2026-67861: n/a
Description
A denial of service vulnerability exists in open62541 version 1.5.5 and earlier via the UA_Client_getRemoteDataTypes component. This flaw allows a remote attacker to cause application unavailability without requiring authentication.
CVSS v3.1
Score 7.5high
Affected software
pkg:github/open62541/open62541Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-67861 describes a denial of service vulnerability in the open62541 OPC UA client library, specifically affecting versions 1.5.5 and earlier. The issue arises in the UA_Client_getRemoteDataTypes function, which can be exploited remotely without privileges or user interaction to cause a denial of service condition. The CVSS v3.1 base score is 7.5, indicating high severity due to the ease of attack and impact on availability.
Potential Impact
An unauthenticated remote attacker can trigger a denial of service, causing the affected application using open62541 to become unavailable. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is documented at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-07-30T00:00:00.000Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a725cbabf8831d5398274e9
Added to database: 08/04/2026, 21:42:18 UTC
Last enriched: 08/04/2026, 21:56:16 UTC
Last updated: 08/04/2026, 23:00:52 UTC
Views: 5
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