CVE-2013-2781

CVE-2013-2781 is a critical-severity vulnerability in 3s-software Codesys Gateway-server with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-399.

Key facts

Description

Use-after-free vulnerability in the server application in 3S CODESYS Gateway 2.3.9.27 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via unspecified vectors.

Frequently asked questions

What is CVE-2013-2781?
Use-after-free vulnerability in the server application in 3S CODESYS Gateway 2.3.9.27 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via unspecified vectors.
How severe is CVE-2013-2781?
CVE-2013-2781 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2013-2781 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-2781?
CVE-2013-2781 affects 3s-software Codesys Gateway-server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2013-2781?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2013-2781 published?
CVE-2013-2781 was published on 2013-05-23 and last updated on 2026-06-16.

References

Affected products (1)

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