CVE-2026-67859: n/a
A buffer overflow vulnerability exists in open62541 version 1.5.5 that allows a remote attacker to cause a denial of service via the Discovery/LDS handling functionality. This vulnerability has a high severity with a CVSS score of 7.5. No official patch or remediation has been confirmed at this time.
AI Analysis
Technical Summary
CVE-2026-67859 is a buffer overflow vulnerability (CWE-120) in open62541 version 1.5.5. The flaw occurs in the Discovery/LDS handling component, enabling a remote attacker to trigger a denial of service condition. The vulnerability requires no privileges and no user interaction, with low attack complexity and network attack vector. The impact is limited to availability, with no confidentiality or integrity impact reported. There is no vendor advisory or patch information currently available.
Potential Impact
The vulnerability allows remote attackers to cause a denial of service, potentially disrupting services relying on open62541 version 1.5.5. There is no indication of confidentiality or integrity compromise. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider limiting exposure of the affected service and monitoring for unusual activity related to Discovery/LDS handling.
CVE-2026-67859: n/a
Description
A buffer overflow vulnerability exists in open62541 version 1.5.5 that allows a remote attacker to cause a denial of service via the Discovery/LDS handling functionality. This vulnerability has a high severity with a CVSS score of 7.5. No official patch or remediation has been confirmed at this time.
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-2026-67859 is a buffer overflow vulnerability (CWE-120) in open62541 version 1.5.5. The flaw occurs in the Discovery/LDS handling component, enabling a remote attacker to trigger a denial of service condition. The vulnerability requires no privileges and no user interaction, with low attack complexity and network attack vector. The impact is limited to availability, with no confidentiality or integrity impact reported. There is no vendor advisory or patch information currently available.
Potential Impact
The vulnerability allows remote attackers to cause a denial of service, potentially disrupting services relying on open62541 version 1.5.5. There is no indication of confidentiality or integrity compromise. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider limiting exposure of the affected service and monitoring for unusual activity related to Discovery/LDS handling.
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: 6a7331b6bf8831d539e55f05
Added to database: 08/05/2026, 12:51:02 UTC
Last enriched: 08/12/2026, 15:36:38 UTC
Last updated: 09/18/2026, 10:01:33 UTC
Views: 58
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