CVE-2026-67859: n/a
A buffer overflow vulnerability exists in open62541 version 1.5.5 related to Discovery/LDS handling, which allows a remote attacker to cause a denial of service. The vulnerability has a high severity rating with a CVSS score of 7.5. No patch or official remediation information is currently available.
AI Analysis
Technical Summary
CVE-2026-67859 describes a buffer overflow vulnerability in open62541 v1.5.5 affecting the Discovery/LDS handling functionality. This flaw allows a remote attacker to cause a denial of service (DoS) condition by exploiting the buffer overflow. The vulnerability does not require privileges or user interaction and has a low attack complexity, making it remotely exploitable over the network without authentication.
Potential Impact
Successful exploitation results in denial of service, impacting availability of the affected system. There is no indication of confidentiality or integrity impact. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider restricting network access to the Discovery/LDS service to trusted sources to reduce exposure.
CVE-2026-67859: n/a
Description
A buffer overflow vulnerability exists in open62541 version 1.5.5 related to Discovery/LDS handling, which allows a remote attacker to cause a denial of service. The vulnerability has a high severity rating with a CVSS score of 7.5. No patch or official remediation information is currently available.
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-2026-67859 describes a buffer overflow vulnerability in open62541 v1.5.5 affecting the Discovery/LDS handling functionality. This flaw allows a remote attacker to cause a denial of service (DoS) condition by exploiting the buffer overflow. The vulnerability does not require privileges or user interaction and has a low attack complexity, making it remotely exploitable over the network without authentication.
Potential Impact
Successful exploitation results in denial of service, impacting availability of the affected system. There is no indication of confidentiality or integrity impact. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider restricting network access to the Discovery/LDS service to trusted sources to reduce exposure.
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: 6a7331b6bf8831d539e55f05
Added to database: 08/05/2026, 12:51:02 UTC
Last enriched: 08/05/2026, 12:53:14 UTC
Last updated: 08/06/2026, 01:59:11 UTC
Views: 4
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