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Fencer Intel
critical 9.8

CVE-2016-5743 in the critical feed json

Siemens SIMATIC WinCC before 7.3 Update 10 and 7.4 before Update 1, SIMATIC BATCH before 8.1 SP1 Update 9 as distributed in SIMATIC PCS 7 t…

published 2016-07-22 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-6678

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
10.5%
EPSS 10.5% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

Summary

Siemens SIMATIC WinCC before 7.3 Update 10 and 7.4 before Update 1, SIMATIC BATCH before 8.1 SP1 Update 9 as distributed in SIMATIC PCS 7 through 8.1 SP1, SIMATIC OpenPCS 7 before 8.1 Update 3 as distributed in SIMATIC PCS 7 through 8.1 SP1, SIMATIC OpenPCS 7 before 8.2 Update 1 as distributed in SIMATIC PCS 7 8.2, and SIMATIC WinCC Runtime Professional before 13 SP1 Update 9 allow remote attackers to execute arbitrary code via crafted packets.

Vendor advisories

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

cisa ICSA-16-208-01C updated cvss 9.8

Siemens SIMATIC WinCC, PCS 7, and WinCC Runtime Professional Vulnerabilities (Update C)

  • Siemens SIMATIC PCS 7 (WinCC, Batch, Route Control, OPEN PCS 7) <V7.1_SP4_with_WinCC_V7.0_SP2_Update_12, <V8.0_SP2_with_WinCC_V7.2_Update_13, <8.1_SP1_with_WinCC_V7.3_Update_10, <8.2_with_WinCC_V7.4_Update_1 Siemens SIMATIC WinCC 7.0 SP2 <Update_12 Siemens SIMATIC WinCC 7.0 SP3 <Update_8 Siemens SIMATIC WinCC 7.2 <Update_13 Siemens SIMATIC WinCC 7.3 <Update_10 Siemens SIMATIC WinCC 7.4 <Update_1
    +1 more products
    Siemens SIMATIC WinCC Runtime Professional <V13_SP_1_Update_9
    affected: mitigation “SIMATIC WinCC V7.0 SP3:: Update to V7.0 SP3 Update 8 (https://support.industry.siemens.com/cs/ww/en/view/109741127)” support.industry.siemens.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

10.49% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation

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.