What is CVE-2011-3486?

CVE-2011-3486 is a vulnerability in Beckhoff Twincat, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2011-09-16.

Is CVE-2011-3486 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Beckhoff Twincat

CVE-2011-3486

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.

Vulnerability class: Buffer Overflow

EPSS: 0.584 (98.2th percentile) — read the EPSS interpretation.

Affected products

Beckhoff Twincat — versions 2.7, 2.8, 2.9
N/a — versions n/a

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

rapid7/metasploit-framework

References

twincat-datagram-dos(69765) (vdb-entry, x_refsource_XF)
8380 (x_refsource_SREASON, third-party-advisory)
cve@mitre.org (US Government Resource, x_refsource_MISC)
75495 (x_refsource_OSVDB, vdb-entry)
cve@mitre.org (Exploit, x_refsource_MISC)

Frequently asked questions

What is CVE-2011-3486?: CVE-2011-3486 is a vulnerability in Beckhoff Twincat, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2011-09-16.
Is CVE-2011-3486 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.