CVE-2021-33269

D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410 were discovered to contain a stack buffer overflow vulnerability in the function…

published December 1, 2021

CVSS
—
EPSS
4%
Percentile
90.4
In the wild
Unconfirmed
What it is

⚠️ A single crafted POST request is all it takes to exploit this stack buffer overflow in D-Link DIR-809 devices! 🔥 Think of it like a delivery truck that, instead of checking its load, accepts a package that's far too big for its cargo space. The truck might burst under the pressure, causing a massive traffic jam! An attacker could potentially crash the device or gain unauthorized access, throwing a wrench in your network operations. Imagine your Wi-Fi going down right when you were about to join that critical video call — absolutely devastating!

Put simply

Think of it like a delivery truck that, instead of checking its load, accepts a package that's far too big for its cargo space. The truck might burst under the pressure, causing a massive traffic jam! This vulnerability happens in the function FUN_8004776c in /formVirtualServ, allowing attackers to trigger a stack buffer overflow with specially crafted POST requests, potentially leading to code execution.

What to do

An attacker could potentially crash the device or gain unauthorized access, throwing a wrench in your network operations. Imagine your Wi-Fi going down right when you were about to join that critical video call — absolutely devastating! To protect your network, update the firmware on your D-Link DIR-809 device to the latest version available. Regularly check for firmware updates to ensure you're not vulnerable to future exploits. 🛡️ You've got this! With these steps, you're well on your way to securing your devices like a pro! 💪😊

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03957 · 90.4th percentile
Published
2021-12-01T21:20Z
EPSS history
Timeline
  • 01 DEC 21:20Z
    D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410 were discovered to contain a stack buffer overflow vulnerability in the function…
    cvelistv5