vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2025-40833

HIGH
7.5
CVSS Score
Published: May 12, 2026 at 08:20 AM UTC
Updated: August 11, 2026 at 01:17 PM UTC
191 products affected across 1 vendorSCALANCE M874-2Scalance M804PB FirmwareSCALANCE M874-3

Using IE/PB LINK HA by Siemens?

Get instant alerts when new vulnerabilities affect IE/PB LINK HA - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
HIGH7.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

IE/PB LINK HA· Siemens
60%
v < V4.1.2
Affected range stops below V4.1.2, so it looks safe — our inference, not a vendor statement
IE/PB Link PN IO· Siemens
60%
All versions
RUGGEDCOM RM1224 LTE(4G) EU· Siemens
60%
v < V8.3
Affected range stops below V8.3, so it looks safe — our inference, not a vendor statement
RUGGEDCOM RM1224 LTE(4G) NAM· Siemens
60%
v < V8.3
Affected range stops below V8.3, so it looks safe — our inference, not a vendor statement
Scalance M804PB Firmware· Siemens
60%
v < V8.3
Affected range stops below V8.3, so it looks safe — our inference, not a vendor statement
Scalance M812-1 Adsl Router Firmware· Siemens
60%
v < V8.3
Affected range stops below V8.3, so it looks safe — our inference, not a vendor statement
Scalance M816-1 Adsl Router Firmware· Siemens
60%
v < V8.3
Affected range stops below V8.3, so it looks safe — our inference, not a vendor statement
Scalance M826-2 Shdsl Router Firmware· Siemens
60%
v < V8.3
Affected range stops below V8.3, so it looks safe — our inference, not a vendor statement
SCALANCE M874-2· Siemens
60%
v < V8.3
Affected range stops below V8.3, so it looks safe — our inference, not a vendor statement
SCALANCE M874-3· Siemens
60%
v < V8.3
Affected range stops below V8.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://cert-portal.siemens.com/productcert/html/ssa-392349.html

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHsiemens
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-476

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card