CVE-2026-21676CWE-122

iccDEV has a Heap-based Buffer Overflow in its CIccMBB::Validate() function

High · published January 6, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
34.0
In the wild
Unconfirmed
What it is

⚡ A heap-based buffer overflow lurks in the CIccMBB::Validate function, waiting for a crafty developer to miss a validation error! 🚨 Think of it as a restaurant where the chef ignores a crucial step in checking food freshness — one bad ingredient can lead to a disastrous dish that ruins the entire meal. In this case, the flaw allows a well-crafted input to overwrite memory, like a rogue order that sneaks in and messes up the kitchen's carefully arranged inventory. An attacker could exploit this vulnerability to overwrite critical memory regions, potentially leading to crashes or allowing the execution of arbitrary code. This means they could hijack the software's processes, leading to a full compromise of the application. It’s not just a minor kitchen mishap; it could turn into a full-blown kitchen fire!

Put simply

Think of it as a restaurant where the chef ignores a crucial step in checking food freshness — one bad ingredient can lead to a disastrous dish that ruins the entire meal. In this case, the flaw allows a well-crafted input to overwrite memory, like a rogue order that sneaks in and messes up the kitchen's carefully arranged inventory. The heap-based buffer overflow in iccDEV’s CIccMBB::Validate function occurs when the function fails to properly validate tag data, enabling an attacker to manipulate memory and potentially execute malicious code.

What to do

An attacker could exploit this vulnerability to overwrite critical memory regions, potentially leading to crashes or allowing the execution of arbitrary code. This means they could hijack the software's processes, leading to a full compromise of the application. It’s not just a minor kitchen mishap; it could turn into a full-blown kitchen fire! Update immediately to version 2.3.1.1 to patch this vulnerability and ensure proper data validation. Additionally, conduct a thorough review of your input validation processes to prevent similar issues down the line. You've got this! With a quick update, you'll have your defenses back up and running in no time. 🛡️

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00409 · 34.0th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-01-06T03:07Z
EPSS history
Timeline
  • 06 JAN 03:07Z
    iccDEV has a Heap-based Buffer Overflow in its CIccMBB::Validate() function
    cvelistv5