CVE-2025-12210CWE-119CWE-121

CVE-2025-12210

High · published October 27, 2025

CVSS v3.1
8.8
EPSS
1%
Percentile
64.7
In the wild
Unconfirmed
What it is

🚨 A remote attack can trigger a stack-based buffer overflow in Tenda O3! Just tweaking the `lanIp` argument is all it takes! ⚡ Think of it as a mischievous trickster slipping a giant letter meant for another recipient into a mailbox, causing the entire postal system to jam! The `SetValue/GetValue` function is that mailbox, and if your input overflows, it'll create chaos. An attacker could exploit this vulnerability to crash the device or potentially execute arbitrary code, leading to unauthorized access. This means they could take control of the device and possibly compromise your entire network. It's a high-stakes game of digital Jenga, and one wrong move could bring the whole tower down!

Put simply

Think of it as a mischievous trickster slipping a giant letter meant for another recipient into a mailbox, causing the entire postal system to jam! The `SetValue/GetValue` function is that mailbox, and if your input overflows, it'll create chaos. This vulnerability in Tenda O3 allows a remote attacker to manipulate the `lanIp` argument in the `/goform/AdvSetLanip` function, leading to a stack-based buffer overflow. This could be used to execute arbitrary code on the device.

What to do

An attacker could exploit this vulnerability to crash the device or potentially execute arbitrary code, leading to unauthorized access. This means they could take control of the device and possibly compromise your entire network. It's a high-stakes game of digital Jenga, and one wrong move could bring the whole tower down! To safeguard your network, update the Tenda O3 firmware to the latest version immediately. Ensure that you restrict access to the device by implementing firewalls or other network security measures. Regularly audit your devices to confirm they are up-to-date and secure. You've got this! With a little diligence, you'll shore up your defenses and keep your network safe! 🛡️

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
0.01077 · 64.7th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-121 · Stack-based Buffer Overflow
Published
2025-10-27T07:15Z
Affected products (1)
ProductVersionsFixed in
tenda/o3_firmware1.0.0.10\(2478\)all versions—
References (6)
EPSS history
Timeline
  • 27 OCT 03:02Z
    Tenda O3 AdvSetLanip GetValue stack-based overflow
    cvelistv5