CVE-2026-67861: n/a
A denial of service vulnerability exists in open62541 version 1.5.5 and earlier. The flaw is triggered via the UA_Client_getRemoteDataTypes component, allowing a remote attacker to cause a denial of service without requiring user interaction or privileges.
AI Analysis
Technical Summary
CVE-2026-67861 is a denial of service vulnerability in the open62541 OPC UA client library affecting versions 1.5.5 and earlier. The issue arises in the UA_Client_getRemoteDataTypes function, which can be exploited remotely to cause a denial of service condition. The vulnerability has a CVSS 3.1 base score of 7.5, indicating high severity with network attack vector, low attack complexity, no privileges required, no user interaction, and impact limited to availability.
Potential Impact
An unauthenticated remote attacker can exploit this vulnerability to cause a denial of service, potentially disrupting applications relying on the open62541 client library. There is no impact on confidentiality or integrity according to the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is currently documented. Users should monitor vendor communications for updates and consider limiting network exposure of affected components until a fix is available.
CVE-2026-67861: n/a
Description
A denial of service vulnerability exists in open62541 version 1.5.5 and earlier. The flaw is triggered via the UA_Client_getRemoteDataTypes component, allowing a remote attacker to cause a denial of service without requiring user interaction or privileges.
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.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-67861 is a denial of service vulnerability in the open62541 OPC UA client library affecting versions 1.5.5 and earlier. The issue arises in the UA_Client_getRemoteDataTypes function, which can be exploited remotely to cause a denial of service condition. The vulnerability has a CVSS 3.1 base score of 7.5, indicating high severity with network attack vector, low attack complexity, no privileges required, no user interaction, and impact limited to availability.
Potential Impact
An unauthenticated remote attacker can exploit this vulnerability to cause a denial of service, potentially disrupting applications relying on the open62541 client library. There is no impact on confidentiality or integrity according to the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is currently documented. Users should monitor vendor communications for updates and consider limiting network exposure of affected components until a fix is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-07-30T00:00:00.000Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a725cbabf8831d5398274e9
Added to database: 08/04/2026, 21:42:18 UTC
Last enriched: 08/12/2026, 15:36:48 UTC
Last updated: 09/18/2026, 10:01:33 UTC
Views: 59
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