HOMEVULNERABILITIESCVE-2019-6569
CRITICAL

CVE-2019-6569

CWE-440Published: March 26, 2019· Updated: Jun 17, 2026

9.1
CVSS v3.1

Official Description

The monitor barrier of the affected products insufficiently blocks data from being forwarded over the mirror port into the mirrored network. An attacker could use this behavior to transmit malicious packets to systems in the mirrored network, possibly influencing their configuration and runtime behavior.

NVD Source

Technical Analysis

CVE-2019-6569 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), availability disruption (denial of service), with a CVSS base score of 9.1.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected Vendors & Products

siemens10 product(s)
scalance x-200 firmwarescalance x-200scalance x-300 firmwarescalance x-300scalance xp-200 firmwarescalance xp-200scalance xc-200 firmwarescalance xc-200scalance xf-200 firmwarescalance xf-200
Source: NVD CPE · 10 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (2)

Quick Facts

CVE IDCVE-2019-6569
CVSS Score9.1 / 10
SeverityCRITICAL
WeaknessCWE-440
CISA KEVNo
Affected1 vendor(s)
PublishedMar 26, 2019

Related CVEs (CWE-440)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2019-6569 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.