CVE-2023-3959CWE-121

Zavio IP Camera Stack-Based Buffer Overflow

Critical · published November 8, 2023

CVSS v3.1
9.8
EPSS
49%
Percentile
98.9
In the wild
Unconfirmed
What it is

🔥 A stack-based overflow vulnerability is lurking in Zavio IP cameras, waiting for a crafty exploit to strike! Think of it like a crowded restaurant with a single entrance. If a dozen people push in at once without checking their reservations, the whole system could fall apart. That's what happens when incoming XML requests overflow the buffer without proper checks! This could be absolutely devastating! An attacker could execute arbitrary code on the camera, gaining control over the device and potentially spying on you or compromising your entire network. The risk escalates quickly—imagine a world where your security camera becomes the attacker instead of the protector!

Put simply

Think of it like a crowded restaurant with a single entrance. If a dozen people push in at once without checking their reservations, the whole system could fall apart. That's what happens when incoming XML requests overflow the buffer without proper checks! The vulnerability arises from the cameras' inability to properly validate buffer sizes when processing XML elements in incoming network requests, leading to potential remote code execution due to stack-based overflows.

What to do

This could be absolutely devastating! An attacker could execute arbitrary code on the camera, gaining control over the device and potentially spying on you or compromising your entire network. The risk escalates quickly—imagine a world where your security camera becomes the attacker instead of the protector! Immediately patch your cameras to the latest firmware version to close this vulnerability. If you’re using any of the affected models, ensure that you review your network configurations and block unauthorized access attempts. Regularly check for updates to stay secure! You've got this! With the right steps, you can protect your cameras and keep your home safe. 🛡️

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
0.48765 · 98.9th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2023-11-08T23:02Z
EPSS history
Timeline
  • 08 NOV 23:02Z
    Zavio IP Camera Stack-Based Buffer Overflow
    cvelistv5