CVE-2025-12622CWE-119CWE-120

CVE-2025-12622

High · published November 3, 2025

CVSS v3.1
8.8
EPSS
1%
Percentile
59.1
In the wild
Unconfirmed
What it is

⚡ A remote attacker can trigger a buffer overflow in Tenda AC10 routers with just a crafty command! Think of it like a delivery driver who receives an order with extra instructions that are so long it spills over into the next package—now that box can burst open and cause chaos! If exploited, this vulnerability could allow an attacker to execute arbitrary commands on the device, potentially gaining control over it. This means they could redirect your internet traffic, spy on your network, or even disable your router entirely—yikes!

Put simply

Think of it like a delivery driver who receives an order with extra instructions that are so long it spills over into the next package—now that box can burst open and cause chaos! The vulnerability stems from the `formSysRunCmd` function in the `/goform/SysRunCmd` file, where improper handling of the `getui` argument leads to a buffer overflow. This oversight lets remote attackers manipulate memory and execute unauthorized commands.

What to do

If exploited, this vulnerability could allow an attacker to execute arbitrary commands on the device, potentially gaining control over it. This means they could redirect your internet traffic, spy on your network, or even disable your router entirely—yikes! To safeguard your network, immediately patch the Tenda AC10 to the fixed version, if available. Additionally, consider changing default credentials and enabling firewall settings to limit access. Regularly check for firmware updates to stay secure! You've got this! Stay proactive and keep your devices secure! 🛡️

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
0.00895 · 59.1th 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
2025-11-03T13:15Z
Affected products (1)
ProductVersionsFixed in
tenda/ac10_firmwareall versions—
References (6)
EPSS history
Timeline
  • 03 NOV 07:32Z
    Tenda AC10 SysRunCmd formSysRunCmd buffer overflow
    cvelistv5