CVE-2011-5008

Exp

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.

Published: 2011-12-25 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-5008 is rated High Exploit Risk (75.5/100): CVSS High severity, with high exploitation likelihood (EPSS 9.30%, 92th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2011-5008

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2011-5008

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 11.04% 9.30% -1.74%
2 2025-03-29 9.30% 11.04% +1.74%
3 2025-03-17 — 9.30% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-5008

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2011-5008

Affected software / configurations for CVE-2011-5008

Vendor Product Version Raw CPE
3ssoftware codesys 3.4 cpe:2.3:a:3ssoftware:codesys:3.4:sp4:*:*:*:*:*:*

References for CVE-2011-5008

cvelogic Threat Intelligence