CVE-2024-56336CWE-287

A vulnerability has been identified in SINAMICS S200 (All versions with serial number beginning with SZVS8, SZVS9, SZVS0 or SZVSN and the FS number is 02)

Critical · published March 11, 2025

CVSS v4.0
9.5
EPSS
1%
Percentile
45.3
In the wild
Unconfirmed
What it is

🚨 An unlocked bootloader in the SINAMICS S200 could turn your device into a hacker's playground! 🔥 Think of the bootloader as the security guard of a high-tech facility — without the proper access control, anyone can waltz right in and tamper with sensitive systems, just like a thief gaining entry to a safe without a proper lock. This oversight is absolutely devastating! An attacker could inject malicious code or install untrusted firmware, compromising data integrity and creating potential chaos in your operations. Imagine the consequences if someone turned your secure machinery against you — it could lead to unauthorized access and manipulation of critical systems.

Put simply

Think of the bootloader as the security guard of a high-tech facility — without the proper access control, anyone can waltz right in and tamper with sensitive systems, just like a thief gaining entry to a safe without a proper lock. CVE-2024-56336 affects all SINAMICS S200 devices with specific serial numbers, allowing attackers to exploit an unsecured bootloader to run arbitrary code and bypass security features designed to protect against data manipulation.

What to do

This oversight is absolutely devastating! An attacker could inject malicious code or install untrusted firmware, compromising data integrity and creating potential chaos in your operations. Imagine the consequences if someone turned your secure machinery against you — it could lead to unauthorized access and manipulation of critical systems. Immediately secure your SINAMICS S200 devices by applying any available firmware patches or updates that lock down the bootloader. If updates are not available, consider reviewing your environment's security controls and isolating vulnerable devices from critical networks until a fix is implemented. You've got this! Take action now and you'll be one step closer to securing your systems! 🛡️

The record
Technical detail
CVSS v4.0
9.5 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
EPSS
0.00551 · 45.3th percentile
Weakness
CWE-287 · Improper Authentication
Published
2025-03-11T09:48Z
EPSS history
Timeline
  • 11 MAR 09:48Z
    A vulnerability has been identified in SINAMICS S200 (All versions with serial number beginning with SZVS8, SZVS9, SZVS0 or SZVSN and the FS number is 02)
    cvelistv5