CVE-2025-41691CWE-476

CODESYS Control DoS via Unauthenticated NULL Pointer Dereference

High · published August 4, 2025

CVSS v3.1
7.5
EPSS
1%
Percentile
44.9
In the wild
Unconfirmed
What it is

An unauthenticated remote attacker may trigger a NULL pointer dereference in the affected CODESYS Control runtime systems by sending specially crafted communication requests, potentially leading to a denial-of-service (DoS) condition.

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
0.00545 · 44.9th percentile
Weakness
CWE-476 · NULL Pointer Dereference
Published
2025-08-04T08:04Z
EPSS history
Timeline
  • 04 AUG 08:04Z
    CODESYS Control DoS via Unauthenticated NULL Pointer Dereference
    cvelistv5