CVE-2020-5542

Buffer error vulnerability in TCP function included in the firmware of Mitsubishi Electric MELQIC IU1 series IU1-1M20-D firmware version 1.0.7 and earlier…

published March 16, 2020

CVSS
—
EPSS
2%
Percentile
83.4
In the wild
Unconfirmed
What it is

⚠️ A little error in the TCP function has big consequences! An attacker can send a crafted packet to the Mitsubishi Electric MELQIC IU1, potentially stopping network functions or even executing malware. 🔥 Think of it like a restaurant where the chef accidentally left out a key step in a recipe. One small tweak in the process could lead to a dish that’s not only inedible but might even spoil the entire meal! If exploited, this vulnerability could bring your network functions to a screeching halt, leaving your system vulnerable to malicious activities. An attacker could manipulate your devices remotely, causing chaos before you even realize what’s happening!

Put simply

Think of it like a restaurant where the chef accidentally left out a key step in a recipe. One small tweak in the process could lead to a dish that’s not only inedible but might even spoil the entire meal! This vulnerability stems from a buffer error in the TCP function within the firmware of the Mitsubishi Electric MELQIC IU1 series, specifically version 1.0.7 and earlier. It allows attackers to send specially crafted packets that disrupt network functions or execute harmful software.

What to do

If exploited, this vulnerability could bring your network functions to a screeching halt, leaving your system vulnerable to malicious activities. An attacker could manipulate your devices remotely, causing chaos before you even realize what’s happening! To mitigate this risk, upgrade your firmware to the latest version available. Regularly monitor updates from Mitsubishi Electric, and consider implementing network-level protections to filter out suspicious packets. 🛡️ You've got this! Taking these steps will help secure your devices and keep your network running smoothly. 🚀

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02326 · 83.4th percentile
Published
2020-03-16T01:25Z
EPSS history
Timeline
  • 16 MAR 01:25Z
    Buffer error vulnerability in TCP function included in the firmware of Mitsubishi Electric MELQIC IU1 series IU1-1M20-D firmware version 1.0.7 and earlier…
    cvelistv5