CVE-2019-13946

HIGH
7.5
CVSS Score
Published: February 11, 2020 at 03:36 PM UTC
Updated: June 17, 2026 at 02:17 AM UTC
198 products affected across 1 vendorScalance S615 FirmwareScalance X 300 FirmwareScalance M 800 Firmware

Using Development/Evaluation Kits for PROFINET IO: DK Standard Ethernet Controller by Siemens?

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Severity
HIGH7.5
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

Profinet-IO (PNIO) stack versions prior V06.00 do not properly limit internal resource allocation when multiple legitimate diagnostic package requests are sent to the DCE-RPC interface. This could lead to a denial of service condition due to lack of memory for devices that include a vulnerable version of the stack. The security vulnerability could be exploited by an attacker with network access to an affected device. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise the availability of the device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.5All Versions < V4.5
Affected range stops below 4.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.6, so it looks safe — our inference, not a vendor statement
All versions
siemens-im-154-3-pn-hf (same device)
All versions
siemens-im-154-4-pn-hf (same device)
Affected range stops below 2.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.3, so it looks safe — our inference, not a vendor statement
v < 4.3
Affected range stops below 4.3, so it looks safe — our inference, not a vendor statement
siemens-scalance-m-800 (same device)
v < 4.3
Affected range stops below 4.3, so it looks safe — our inference, not a vendor statement
v ≤ 6.0.1
siemens-scalance-w700-ieee-802-11n (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHsiemens
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400

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