CVE-2024-11737CWE-20

CWE-20: Improper Input Validation vulnerability exists that could lead to a denial of service and a loss of confidentiality, integrity of the controller when…

Critical · published December 11, 2024

CVSS v4.0
9.3
EPSS
1%
Percentile
49.9
In the wild
Unconfirmed
What it is

🔥 An unauthenticated Modbus packet can send your controller spiraling into chaos! Think of it like a mischievous prankster sending a fake emergency alert to a fire alarm system, causing it to go off and disrupt everything, even when there’s no fire! An attacker could trigger a denial of service, leaving your device useless and potentially exposing sensitive data. This could lead to a significant operational halt and compromise the integrity of your entire system. It's absolutely devastating!

Put simply

Think of it like a mischievous prankster sending a fake emergency alert to a fire alarm system, causing it to go off and disrupt everything, even when there’s no fire! This vulnerability arises from improper input validation, allowing attackers to send crafted Modbus packets that can crash the controller or manipulate its operations.

What to do

An attacker could trigger a denial of service, leaving your device useless and potentially exposing sensitive data. This could lead to a significant operational halt and compromise the integrity of your entire system. It's absolutely devastating! Immediately implement input validation checks on Modbus packets, and ensure that your device firmware is updated to the latest version that addresses this vulnerability. It's crucial to restrict access to trusted networks only! You've got this! With these steps, you’ll keep your systems safe and sound. 🛡️

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00637 · 49.9th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2024-12-11T09:36Z
EPSS history
Timeline
  • 11 DEC 09:36Z
    CWE-20: Improper Input Validation vulnerability exists that could lead to a denial of service and a loss of confidentiality, integrity of the controller when…
    cvelistv5