CVE-2023-0854CWE-122

Buffer overflow in NetBIOS QNAME registering and communication process of Office / Small Office Multifunction Printers and Laser Printers(*) which may allow an…

Critical · published May 11, 2023

CVSS v3.1
9.8
EPSS
1%
Percentile
67.0
In the wild
Unconfirmed
What it is

🚨 A sneaky buffer overflow in your Office multifunction printers could let an attacker turn them into unresponsive bricks or worse — run any code they choose! 🔥 Think of it like a crowded restaurant where one customer orders too many dishes at once. The waiter’s not prepared for the overload, and chaos ensues – the kitchen can’t keep up, and the restaurant might crash! An attacker within the same network segment could exploit this flaw to crash the printer, rendering it unresponsive, or worse, execute arbitrary code. This could lead to unauthorized access, data breaches, or even full control over the affected device, making it a potential gateway for further attacks.

Put simply

Think of it like a crowded restaurant where one customer orders too many dishes at once. The waiter’s not prepared for the overload, and chaos ensues – the kitchen can’t keep up, and the restaurant might crash! This vulnerability arises from a buffer overflow in the NetBIOS QNAME registration and communication process within specific models of Office and Small Office Multifunction Printers. If exploited, the attack could allow arbitrary code execution or denial-of-service conditions.

What to do

An attacker within the same network segment could exploit this flaw to crash the printer, rendering it unresponsive, or worse, execute arbitrary code. This could lead to unauthorized access, data breaches, or even full control over the affected device, making it a potential gateway for further attacks. To secure your devices, ensure your printers are updated to the latest firmware version beyond 11.04. It's crucial to restrict network access to trusted devices only and regularly monitor for unusual activity on the network. You've got this! Follow these steps to lock down your printers and keep your network 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
0.01163 · 67.0th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2023-05-11T00:00Z
EPSS history
Timeline
  • 11 MAY 00:00Z
    Buffer overflow in NetBIOS QNAME registering and communication process of Office / Small Office Multifunction Printers and Laser Printers(*) which may allow an…
    cvelistv5