CVE-2026-67859CWE-120

CVE-2026-67859

High · published August 5, 2026

CVSS v3.1

7.5

EPSS

1%

Percentile

56.8

In the wild

Unconfirmed

What it is

Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the Discovery/LDS handling.

The record

Technical detail

CVSS v3.1: 7.5 · HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0: Not supplied
EPSS: 0.00820 · 56.8th percentile
Weakness: CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published: 2026-08-05T02:17Z

References (6)

https://github.com/open62541/open62541/blob/master/examples/discovery/server_lds.c · [email protected]https://github.com/open62541/open62541/blob/master/src/server/ua_discovery_mdns.c · [email protected]https://github.com/open62541/open62541/blob/master/src/server/ua_services_discovery.c · [email protected]https://github.com/open62541/open62541/blob/master/src/util/ua_util.c · [email protected]https://github.com/open62541/open62541/issues/8095 · [email protected]https://github.com/open62541/open62541/issues/8095 · 134c704f-9b21-4f2e-91b3-4a467353bcc0

EPSS history

Timeline

04 AUG 00:00Z
Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the Discovery/LDS handling
cvelistv5