Vulnerability Intelligence Report
Siemens SIMATIC CP 1543-1 Improper Privilege Management Vulnerability
CVE-2016-8562
A vulnerability has been identified in SIMATIC CP 1543-1 (All versions < V2.0.28), SIPLUS NET CP 1543-1 (All versions < V2.0.28). Under special conditions it was possible to write SNMP variables on port 161/udp which should be read-only and should only be configured with TIA-Portal. A write to these variables could reduce the availability or cause a denial-of-service.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
7.5
HIGH
Exploitability:1.7
Impact Score:5.9
EPSS Probability:3.62%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-20 ↗CWE-20 (via CISA KEV)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| siemens | simatic_cp_1543-1_firmware | all |
| siemens | simatic_cp_1543-1 | all |
| siemens | siplus_net_cp_1543-1_firmware | all |
| siemens | siplus_net_cp_1543-1 | all |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MITRE Corporation · N/A · USA |
| Reserved | 2016-10-07T00:00:00 |
| Published | 2016-11-18T21:00:00 |
| Patch Date | 2016-11-18 |
| Last Updated | 2025-10-21T23:55:48 |
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