CVE-2021-34346CWE-787

Stack Based Overflow Vulnerability in NVR Storage Expansion

Critical · published September 10, 2021

CVSS v3.1
9.8
EPSS
2%
Percentile
75.3
In the wild
Unconfirmed
What it is

🔥 A stack buffer overflow in QNAP's NVR Storage Expansion could let attackers slip in and run whatever code they want! Think of it like a restaurant kitchen where a delivery chef can just toss in any ingredient without checking — one wrong item could ruin the entire dish! If this vulnerability is exploited, attackers could gain full control over your device, potentially stealing sensitive data or compromising your entire network. It's absolutely devastating and needs your immediate attention to prevent any unauthorized access!

Put simply

Think of it like a restaurant kitchen where a delivery chef can just toss in any ingredient without checking — one wrong item could ruin the entire dish! This vulnerability stems from a stack buffer overflow in QNAP devices running NVR Storage Expansion, allowing attackers to execute arbitrary code by sending specially crafted input.

What to do

If this vulnerability is exploited, attackers could gain full control over your device, potentially stealing sensitive data or compromising your entire network. It's absolutely devastating and needs your immediate attention to prevent any unauthorized access! To secure your system, update to NVR Storage Expansion version 1.0.6 or later without delay. Regularly monitor your devices and ensure you're running the latest firmware to keep everything locked down tight! You've got this! Follow these steps, and you'll be a security hero in no time! 🦸

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
0.01579 · 75.3th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2021-09-10T04:00Z
EPSS history
Timeline
  • 10 SEP 04:00Z
    Stack Based Overflow Vulnerability in NVR Storage Expansion
    cvelistv5