CVE-2012-4705
CriticalPublic exploitDirectory traversal vulnerability in 3S CODESYS Gateway-Server before 2.3.9.27 allows remote attackers to execute arbitrary code via vectors involving a crafted pathname.
Published Feb 24, 2013 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2012-4705 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Codesys Gateway-Server (3s-Software).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 65% probability of exploitation in the next 30 days.
- Fixed versions are available, including Codesys Gateway-Server 2.3.9.20.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
10.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
65%
Higher than 99.2% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2012-4705 brief as a PDF
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Description
Directory traversal vulnerability in 3S CODESYS Gateway-Server before 2.3.9.27 allows remote attackers to execute arbitrary code via vectors involving a crafted pathname.
Affected Products
17 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Codesys Gateway-Server3s-Software | 2.3.5.1, 2.3.5.2, 2.3.5.3, 2.3.6.0, 2.3.7.0, 2.3.8.0, 2.3.8.1, 2.3.8.2 | 2.3.9.20 |
Patched Releases
Codesys Gateway-Server
2.3.9.20
Timeline
Publicly disclosed
Feb 24, 2013
Last updated
Apr 28, 2026
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
FAQ
Common Questions.
Directory traversal vulnerability in 3S CODESYS Gateway-Server before 2.3.9.27 allows remote attackers to execute arbitrary code via vectors involving a crafted pathname.
Affected: Codesys Gateway-Server (3s-Software) versions 2.3.5.1, 2.3.5.2, 2.3.5.3, 2.3.6.0, 2.3.7.0, 2.3.8.0, 2.3.8.1, 2.3.8.2. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Codesys Gateway-Server 2.3.9.20.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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