CVE-2024-34209

TOTOLINK CP450 v4.1.0cu.747_B20191224 was discovered to contain a stack buffer overflow vulnerability in the setIpPortFilterRules function

Critical · published May 9, 2024

CVSS v3.1
9.8
EPSS
1%
Percentile
60.4
In the wild
Unconfirmed
What it is

🚨 A stack buffer overflow in TOTOLINK CP450 could turn your router from a helpful assistant into a malicious intruder! 🔥 Think of it like a café where baristas keep stacking cups too high — eventually, one careless move causes them all to topple over, leading to chaos in the café. In this case, the overflow lets attackers manipulate the flow of the system, causing major disruptions. An attacker could exploit this vulnerability to execute arbitrary code on the device, potentially gaining full control over your network. That means they could intercept your data, change settings, or even launch attacks on other devices connected to your network. Absolutely devastating!

Put simply

Think of it like a café where baristas keep stacking cups too high — eventually, one careless move causes them all to topple over, leading to chaos in the café. In this case, the overflow lets attackers manipulate the flow of the system, causing major disruptions. The vulnerability exists in the setIpPortFilterRules function of the TOTOLINK CP450 v4.1.0cu.747_B20191224 firmware, where insufficient bounds checking allows a stack buffer overflow.

What to do

An attacker could exploit this vulnerability to execute arbitrary code on the device, potentially gaining full control over your network. That means they could intercept your data, change settings, or even launch attacks on other devices connected to your network. Absolutely devastating! It’s critical to patch this flaw immediately by upgrading to a secure version of the firmware. Additionally, consider deploying network monitoring tools to detect any suspicious activity while you manage this issue. You’ve got this! Regular maintenance and updates keep your network safe and sound. 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00936 · 60.4th percentile
Published
2024-05-09T16:42Z
EPSS history
Timeline
  • 09 MAY 16:42Z
    TOTOLINK CP450 v4.1.0cu.747_B20191224 was discovered to contain a stack buffer overflow vulnerability in the setIpPortFilterRules function
    cvelistv5