CVE-2020-5544

Null Pointer Dereference vulnerability in TCP function included in the firmware of Mitsubishi Electric MELQIC IU1 series IU1-1M20-D firmware version 1.0.7 and…

published March 16, 2020

CVSS
—
EPSS
2%
Percentile
84.0
In the wild
Unconfirmed
What it is

⚠️ A crafty packet is all it takes to disrupt network functions! This Null Pointer Dereference in Mitsubishi Electric's MELQIC IU1 firmware could leave you vulnerable. 🔌 Think of it like a restaurant that shuts down entirely because no one is around to check the orders. If a rogue packet rolls in, it could stop the whole network operation in its tracks, just like the kitchen going silent! An attacker could potentially halt network functions or even execute malware, leaving systems unresponsive and open to further exploitation. This could lead to significant disruptions, especially in environments relying on consistent network connectivity.

Put simply

Think of it like a restaurant that shuts down entirely because no one is around to check the orders. If a rogue packet rolls in, it could stop the whole network operation in its tracks, just like the kitchen going silent! This vulnerability arises from a null pointer dereference in the TCP function of the MELQIC IU1 firmware versions 1.0.7 and earlier. A specially crafted packet sent by an attacker could result in unexpected behavior, enabling network failures or the execution of malicious code.

What to do

An attacker could potentially halt network functions or even execute malware, leaving systems unresponsive and open to further exploitation. This could lead to significant disruptions, especially in environments relying on consistent network connectivity. Immediate action is required: upgrade your MELQIC IU1 firmware to version 1.0.8 or later. Regularly audit your network for any unusual activity and consider monitoring inbound packets closely. You’ve got this! With a quick update, you’ll be back on track, keeping your systems safe and sound. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02415 · 84.0th percentile
Published
2020-03-16T01:25Z
EPSS history
Timeline
  • 16 MAR 01:25Z
    Null Pointer Dereference vulnerability in TCP function included in the firmware of Mitsubishi Electric MELQIC IU1 series IU1-1M20-D firmware version 1.0.7 and…
    cvelistv5