CVE-2011-5008
Integer overflow in the GatewayService component in 3S CoDeSys 3.4 SP4 Patch 2 allows remote attackers to execute arbitrary code via a large size value in the packet header, which triggers a heap-based buffer overflow.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.97%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Integer overflow in the GatewayService component in 3S CoDeSys 3.4 SP4 Patch 2 allows remote attackers to execute arbitrary code via a large size value in the packet header, which triggers a heap-based buffer overflow.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 4.97% probability · 92th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-189
- Affected
- 3ssoftware/codesys
- Source
- cve@mitre.org
EPSS 5.0% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://aluigi.altervista.org/adv/codesys_1-adv.txt
- http://seclists.org/bugtraq/2011/Nov/178
- http://secunia.com/advisories/47018Vendor Advisory
- http://www.osvdb.org/77386
- http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-336-01A.pdfExploit, US Government Resource
- https://exchange.xforce.ibmcloud.com/vulnerabilities/71531
- http://aluigi.altervista.org/adv/codesys_1-adv.txt
- http://seclists.org/bugtraq/2011/Nov/178
- http://secunia.com/advisories/47018Vendor Advisory
- http://www.osvdb.org/77386
- http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-336-01A.pdfExploit, US Government Resource
- https://exchange.xforce.ibmcloud.com/vulnerabilities/71531
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.