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Fencer Intel
medium 5.0

CVE-2015-6484 json

3S-Smart CODESYS Gateway Server before 2.3.9.48 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon c…

published 2015-10-25 11 y ago modified 2026-06-17 4 mo ago also EUVD-2015-6425

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

3S-Smart CODESYS Gateway Server before 2.3.9.48 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted (1) GET or (2) POST request.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-15-293-03 updated cvss 7.5

3S CODESYS Gateway Null Pointer Exception Vulnerability

  • 3S CODESYS CODESYS Gateway Server <=2.3.9.47
    affected: mitigation “Update to the latest version. (https://www.codesys.com/download/download-center.html)” codesys.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

2.07% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.