CVE-2025-40833CWE-476

CVE-2025-40833

High · published May 12, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
24.2
In the wild
Unconfirmed
What it is

The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests. This could allow an attacker to cause denial of service condition. A manual restart is required to recover the system.

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
0.00324 · 24.2th percentile
Weakness
CWE-476 · NULL Pointer Dereference
Published
2026-05-12T14:16Z
References (1)
https://cert-portal.siemens.com/productcert/html/ssa-392349.html · [email protected]
EPSS history
Timeline
  • 12 MAY 08:20Z
    The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests
    cvelistv5