CVE-2011-3486 EXPLOIT
5.0
MEDIUM · CVSS 2.0 · EPSS 49.7% (pctl 99)
Patch early
A public exploit exists.
Description
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.
Scoring
| CVSS | 5.0 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| EPSS | 49.65% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2011-09-16 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| beckhoff | twincat |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Beckhoff TwinCAT 2.11.0.2004 - Denial of Service | 2011-09-14 |
References
- http://aluigi.altervista.org/adv/twincat_1-adv.txt
- http://osvdb.org/75495
- http://securityreason.com/securityalert/8380
- http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-256-06.pdf
- https://exchange.xforce.ibmcloud.com/vulnerabilities/69765
- http://aluigi.altervista.org/adv/twincat_1-adv.txt
- http://osvdb.org/75495
- http://securityreason.com/securityalert/8380
- http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-256-06.pdf
- https://exchange.xforce.ibmcloud.com/vulnerabilities/69765
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