How severe is CVE-2016-5744?

CVE-2016-5744 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2016-5744 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-5744?

CVE-2016-5744 primarily affects Siemens Simatic Wincc. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-5744?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2016-5744 published?

CVE-2016-5744 was published on 2016-07-22 and last updated on 2026-06-17.

CVE-2016-5744

CVE-2016-5744 is a high-severity vulnerability in Siemens Simatic Wincc with a CVSS 3.x base score of 7.5. 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-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Siemens Simatic Wincc
Published: 2016-07-22
Last modified: 2026-06-17

Description

Siemens SIMATIC WinCC 7.0 through SP3 and 7.2 allows remote attackers to read arbitrary WinCC station files via crafted packets.

Frequently asked questions

What is CVE-2016-5744?: Siemens SIMATIC WinCC 7.0 through SP3 and 7.2 allows remote attackers to read arbitrary WinCC station files via crafted packets.
How severe is CVE-2016-5744?: CVE-2016-5744 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2016-5744 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-5744?: CVE-2016-5744 primarily affects Siemens Simatic Wincc. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-5744?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-5744 published?: CVE-2016-5744 was published on 2016-07-22 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:siemens:simatic_wincc:7.0:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc:7.0:sp1:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc:7.0:sp2:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc:7.0:sp3:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc:7.2:*:*:*:*:*:*:*

More vulnerabilities in Siemens Simatic Wincc

CVE-2014-8551 — Critical (CVSS 10.0): The WinCC server in Siemens SIMATIC WinCC 7.0 through SP3, 7.2 before Update 9, and 7.3 before Update 2; SIMATIC PCS 7…
CVE-2021-40358 — Critical (CVSS 9.9): A vulnerability has been identified in SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3…
CVE-2019-10922 — Critical (CVSS 9.8): A vulnerability has been identified in SIMATIC PCS 7 V8.0 and earlier (All versions), SIMATIC PCS 7 V8.1 and newer (All…
CVE-2016-5743 — Critical (CVSS 9.8): Siemens SIMATIC WinCC before 7.3 Update 10 and 7.4 before Update 1, SIMATIC BATCH before 8.1 SP1 Update 9 as…
CVE-2021-40360 — High (CVSS 8.8): A vulnerability has been identified in SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions), SIMATIC…
CVE-2019-10918 — High (CVSS 8.8): A vulnerability has been identified in SIMATIC PCS 7 V8.0 and earlier (All versions), SIMATIC PCS 7 V8.1 (All versions…

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