CVE-2026-67858
HIGH
7,5
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Description
AI Translation Available
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.
EPSS (Exploit Prediction Scoring System)
Trend Analysis
EPSS (Exploit Prediction Scoring System)
Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.
EPSS Score
0,0049
Percentile
0,4th
Updated
EPSS Score Trend (Last 3 Days)
120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
IncompleteCommon Consequences
Security Scopes Affected:
Integrity
Confidentiality
Availability
Potential Impacts:
Modify Memory
Execute Unauthorized Code Or Commands
Dos: Crash, Exit, Or Restart
Dos: Resource Consumption (Cpu)
Applicable Platforms
Languages:
Memory-Unsafe, C, C++, Assembly
https://github.com/open62541/open62541/issues/8094
https://github.com/open62541/open62541/blob/master/doc/building.rst
https://github.com/open62541/open62541/blob/master/src/server/ua_discovery_mdns…
https://github.com/open62541/open62541/blob/master/src/server/ua_services_disco…
https://github.com/open62541/open62541/issues/8094
https://github.com/open62541/open62541/tree/master/examples/discovery