Improper Check for Unusual or Exceptional Conditions in Modicon Quantum 140 NOE771x1 - CVE-2019-6811
Published: October 2, 2019
Vulnerability identifier: #VU21484
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2019-6811
CWE-ID:
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Schneider Electric
Affected software:
Modicon Quantum 140 NOE771x1
Modicon Quantum 140 NOE771x1
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service (DoS) condition.
The vulnerability exits due to the affected software does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the software. A remote attacker can send a specially crafted IP fragmented packet with a length greater than 65535 bytes to the module and cause a denial of service condition.
How to mitigate CVE-2019-6811
Install updates from vendor's website.