CVE-2016-8562VulnerabilityPublished 03/03/2022Updated 10/24/2026

CVE-2016-8562: Siemens SIMATIC CP 1543-1 Improper Privilege Management Vulnerability

Affects Siemens SIMATIC CPSource CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 03/03/2022
KEV deadline: 03/24/2022
EPSS: 3.6% chance of exploitation in 30 days – higher than 89% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2016-8562 (opens in a new tab)

Description

CVE-2016-8562 is an improper privilege management vulnerability in the Siemens SIMATIC Communication Processor (CP 1543-1) that allows a privileged attacker to remotely cause a denial of service condition. This vulnerability has been exploited in the wild. No specific affected versions or patch information is provided.

Summary

The vulnerability CVE-2016-8562 affects Siemens SIMATIC CP 1543-1 devices. It involves improper privilege management, which enables a privileged attacker to remotely trigger a denial of service. The vulnerability has been confirmed as exploited in the wild, indicating active threat usage. No detailed patch or remediation information is available from the provided data.

Impact

An attacker with privileged access can remotely cause a denial of service on affected Siemens SIMATIC CP 1543-1 devices. This can disrupt industrial communication processes relying on these devices. The vulnerability does not describe escalation beyond denial of service or data compromise in the provided information.

Mitigation

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, restrict privileged access to the affected devices and monitor for suspicious activity related to this vulnerability.

Weaknesses

CWE-20Improper Input Validation (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 10:26:41 UTC

Weaknesses

References

Related threats