CVE-2025-15460CWE-119CWE-120

CVE-2025-15460

High · published January 5, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
48.4
In the wild
Unconfirmed
What it is

⚡ A simple manipulation of the EncryptionMode argument in UTT 进取 520W could lead to a remote buffer overflow! This isn’t just a minor bug—it's a high-stakes flaw ready to be exploited! Think of it like a waiter who doesn’t double-check orders; one incorrect item sent out can wreak havoc in the kitchen, causing a spill of ingredients everywhere. In this case, that spill allows attackers to access sensitive areas of your system. If exploited, an attacker could gain unauthorized access, potentially allowing them to execute arbitrary code or manipulate critical system functions. This could lead to a complete compromise of the device, putting your data and security at serious risk. It’s a mind-blowingly simple yet devastating vulnerability that demands immediate attention!

Put simply

Think of it like a waiter who doesn’t double-check orders; one incorrect item sent out can wreak havoc in the kitchen, causing a spill of ingredients everywhere. In this case, that spill allows attackers to access sensitive areas of your system. The vulnerability occurs due to a buffer overflow in the strcpy function within the '/goform/formPptpClientConfig' file when the EncryptionMode argument is manipulated. This flaw allows remote exploitation without any authentication needed, making it particularly dangerous.

What to do

If exploited, an attacker could gain unauthorized access, potentially allowing them to execute arbitrary code or manipulate critical system functions. This could lead to a complete compromise of the device, putting your data and security at serious risk. It’s a mind-blowingly simple yet devastating vulnerability that demands immediate attention! Immediately patch your UTT 进取 520W to version 1.7.7-180627 or later to close this vulnerability. Additionally, consider implementing input validation to ensure that the EncryptionMode argument is properly checked before being processed. Regularly monitor for any updates from the vendor regarding this issue. You've got this! By taking these steps, you can secure your system and maintain your security hero status! 🛡️

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00608 · 48.4th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2026-01-05T11:16Z
Affected products (1)
ProductVersionsFixed in
utt/520w_firmware≤ 1.7.7-180627—
References (6)
EPSS history
Timeline
  • 05 JAN 06:02Z
    UTT 进取 520W formPptpClientConfig strcpy buffer overflow
    cvelistv5