How severe is CVE-2012-4355?

CVE-2012-4355 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2012-4355 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-4355?

CVE-2012-4355 primarily affects Sielcosistemi Winlog Pro. In total, 56 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-4355?

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-2012-4355 published?

CVE-2012-4355 was published on 2012-08-19 and last updated on 2026-06-16.

CVE-2012-4355

CVE-2012-4355 is a critical-severity vulnerability in Sielcosistemi Winlog Pro with a CVSS 2.0 base score of 9.3. 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-189.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Sielcosistemi Winlog Pro
Published: 2012-08-19
Last modified: 2026-06-16

Description

TCPIPS_Story.dll in Sielco Sistemi Winlog Pro SCADA before 2.07.18 and Winlog Lite SCADA before 2.07.18 allows remote attackers to execute arbitrary code via a port-46824 TCP packet with a crafted negative integer after the opcode, triggering incorrect function-pointer processing that can lead to a buffer overflow. NOTE: some of these details are obtained from third party information. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-4354.

Frequently asked questions

What is CVE-2012-4355?: TCPIPS_Story.dll in Sielco Sistemi Winlog Pro SCADA before 2.07.18 and Winlog Lite SCADA before 2.07.18 allows remote attackers to execute arbitrary code via a port-46824 TCP packet with a crafted negative integer after the opcode, triggering incorrect function-pointer processing that can lead to a buffer overflow. NOTE: some of these details are obtained from third party information. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-4354.
How severe is CVE-2012-4355?: CVE-2012-4355 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2012-4355 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-4355?: CVE-2012-4355 primarily affects Sielcosistemi Winlog Pro. In total, 56 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-4355?: 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-2012-4355 published?: CVE-2012-4355 was published on 2012-08-19 and last updated on 2026-06-16.

References

Affected products (56)

cpe:2.3:a:sielcosistemi:winlog_pro:*:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.00:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.03:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.04:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.06:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.09:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.10:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.12:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.13:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.14:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.18:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.21:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.24:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.25:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.28:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.40:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.46:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.50:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.60:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.73:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.06.86:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.07.00:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.07.01:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.07.08:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.07.09:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.07.11:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.07.14:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_pro:2.07.16:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_lite:*:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_lite:2.06.00:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_lite:2.06.03:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_lite:2.06.04:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_lite:2.06.06:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_lite:2.06.09:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_lite:2.06.10:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_lite:2.06.12:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_lite:2.06.13:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_lite:2.06.14:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_lite:2.06.18:*:*:*:*:*:*:*
cpe:2.3:a:sielcosistemi:winlog_lite:2.06.21:*:*:*:*:*:*:*

More vulnerabilities in Sielcosistemi Winlog Pro

CVE-2012-4359 — Critical (CVSS 9.3): Sielco Sistemi Winlog Pro SCADA before 2.07.18 and Winlog Lite SCADA before 2.07.18 do not validate the return value of…
CVE-2012-4358 — Critical (CVSS 9.3): Sielco Sistemi Winlog Pro SCADA before 2.07.17 and Winlog Lite SCADA before 2.07.17 do not validate the return value of…
CVE-2012-4357 — Critical (CVSS 9.3): Array index error in Sielco Sistemi Winlog Pro SCADA before 2.07.17 and Winlog Lite SCADA before 2.07.17 might allow…
CVE-2012-4354 — Critical (CVSS 9.3): TCPIPS_Story.dll in Sielco Sistemi Winlog Pro SCADA before 2.07.17 and Winlog Lite SCADA before 2.07.17 allows remote…
CVE-2012-4353 — Critical (CVSS 9.3): Stack-based buffer overflow in RunTime.exe in Sielco Sistemi Winlog Pro SCADA before 2.07.17 and Winlog Lite SCADA…
CVE-2012-3815 — Critical (CVSS 9.3): Buffer overflow in RunTime.exe in Sielco Sistemi Winlog Pro SCADA before 2.07.18 and Winlog Lite SCADA before 2.07.18…

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