Buffer overflow in TwinCAT - CVE-2011-3486
Published: September 16, 2011 / Updated: August 11, 2020
Vulnerability identifier: #VU44742
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:A/U:Green
CVE-ID: CVE-2011-3486
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Beckhoff
Affected software:
TwinCAT
TwinCAT
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
Beckhoff TwinCAT 2.11.0.2004 and earlier allows remote attackers to cause a denial of service via a crafted request to UDP port 48899, which triggers an out-of-bounds read.
How to mitigate CVE-2011-3486
Install update from vendor's website.