CVE-2026-0836CWE-119CWE-120

UTT 进取 520W formConfigFastDirectionW strcpy buffer overflow

High · published January 11, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
57.8
In the wild
Unconfirmed
What it is

⚡ A single argument tweak is all it takes to unleash chaos! The strcpy function in UTT 进取 520W versions before 1.7.7-180627 is a ticking time bomb for buffer overflow attacks. 🔥 Think of it like a restaurant where one cook serves a dish without checking the recipe. If they add too many ingredients (data), the plate overflows, causing a mess! Here, the cook is the strcpy function and the overflow can lead to unexpected consequences. An attacker could exploit this vulnerability to execute arbitrary code remotely, potentially taking control of the affected device. This could lead to data breaches, service disruption, or worse—an attacker could even manipulate the device to perform actions without your consent!

Put simply

Think of it like a restaurant where one cook serves a dish without checking the recipe. If they add too many ingredients (data), the plate overflows, causing a mess! Here, the cook is the strcpy function and the overflow can lead to unexpected consequences. This vulnerability occurs due to improper argument handling in the strcpy function, which can lead to a buffer overflow. When the attacker manipulates the ssid argument, they can overwrite the memory and execute malicious code.

What to do

An attacker could exploit this vulnerability to execute arbitrary code remotely, potentially taking control of the affected device. This could lead to data breaches, service disruption, or worse—an attacker could even manipulate the device to perform actions without your consent! Immediately patch the device to version 1.7.7-180627 or higher to close this vulnerability. If possible, restrict access to the vulnerable function and monitor for any unusual activity on your network. Regularly check for updates from the vendor to stay secure. You've got this! Secure your devices today, and you'll keep those digital villains at bay! 🛡️

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
EPSS
0.00851 · 57.8th 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
2026-01-11T04:32Z
EPSS history
Timeline
  • 11 JAN 04:32Z
    UTT 进取 520W formConfigFastDirectionW strcpy buffer overflow
    cvelistv5