HIGHVulnerability
CVE-2026-67858
Buffer Overflow vulnerability exists in open62541 1.5.5 when the Local Discovery Server (LDS) is built with multicast discovery enabled through the MDNSD backend. An unauthenticated remote attacker can send a RegisterServer or RegisterServer2 request containing many unique discoveryUrls. This allows remote attackers to cause a denial of service.
Properties
- severity
- HIGH
- score
- 7.5
- cve_id
- CVE-2026-67858
- vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- published_at
- 2026-08-04T22:17:16.087
- last_modified
- 2026-08-31T19:33:11.197
Related Entities (2)
DESCRIBED_BY (1)
→[Source]NVD
HAS_WEAKNESS (1)
→[Weakness]Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
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