CVE-2025-64693CWE-122

CVE-2025-64693

Critical · published November 25, 2025

CVSS v3.0
9.8
EPSS
1%
Percentile
51.7
In the wild
Unconfirmed
What it is

🚨 A crafty request is all it takes for an attacker to execute code with SYSTEM privileges! This heap-based buffer overflow bug in MaLion and MaLionCloud could let the bad guys in without breaking a sweat. 🔥 Think of it like a restaurant where the waitstaff let in anyone who claims to have a reservation, even if they haven't made one! That unauthorized guest could just waltz into the kitchen and start cooking up trouble. An attacker could exploit this vulnerability to run arbitrary code, potentially gaining full control over the system! This means they could access sensitive data, install malicious software, or even take down critical services. The risks are absolutely devastating!

Put simply

Think of it like a restaurant where the waitstaff let in anyone who claims to have a reservation, even if they haven't made one! That unauthorized guest could just waltz into the kitchen and start cooking up trouble. This vulnerability arises from improper handling of the Content-Length header, leading to a heap-based buffer overflow that allows a remote unauthenticated attacker to execute arbitrary code.

What to do

An attacker could exploit this vulnerability to run arbitrary code, potentially gaining full control over the system! This means they could access sensitive data, install malicious software, or even take down critical services. The risks are absolutely devastating! Immediately patch your MaLion and MaLionCloud to the latest version to close this loophole. This is critical to prevent potential exploitation — don't delay! Regularly audit your system for unpatched components as a best practice. You've got this! Taking swift action now will help secure your environment from this threat. 🛡️

The record
Technical detail
CVSS v3.0
9.8 · CRITICAL
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00678 · 51.7th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2025-11-25T13:15Z
References (2)
EPSS history
Timeline
  • 25 NOV 07:21Z
    Security Point (Windows) of MaLion and MaLionCloud contains a heap-based buffer overflow vulnerability in processing Content-Length
    cvelistv5