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CVE-2016-5743

35
FAUCET Score

CVE-2016-5743 is a critical vulnerability affecting multiple Siemens SIMATIC products, including WinCC, BATCH, OpenPCS 7, and WinCC Runtime Professional. This flaw allows remote attackers to execute arbitrary code by sending specially crafted packets to vulnerable systems. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk due to its network-based attack vector, low attack complexity, and high potential for complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage, indicating awareness within the cybersecurity community.

Impacted Technologies

VendorProductVersion(s)CPE
<= 7.1CPE matchmatch criteria
cpe:2.3:a:siemens:simatic_batch:*:*:*:*:*:*:*:*
<= 7.3CPE matchmatch criteria
cpe:2.3:a:siemens:simatic_wincc:*:*:*:*:*:*:*:*
<= 7.4CPE matchmatch criteria
cpe:2.3:a:siemens:simatic_wincc:*:*:*:*:*:*:*:*
<= 8.1CPE matchmatch criteria
cpe:2.3:a:siemens:simatic_openpcs_7:*:*:*:*:*:*:*:*
<= 8.2CPE matchmatch criteria
cpe:2.3:a:siemens:simatic_openpcs_7:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
10.49%
Probability of exploitation in next 30 days
EPSS Percentile
95.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-23
Model: v2026.06.15
This CVE's current EPSS score of 0.1049 is in the 91st percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

ics-cert.us-cert.gov / advisories/ICSA-16-208-01
securityfocus.com / bid/92112
Third Party AdvisoryVDB Entry
securitytracker.com / id/1036441
Third Party AdvisoryVDB Entry
siemens.com / cert/pool/cert/siemens_security_advisory_ssa-378531.pdf
MitigationVendor Advisory