CVE record · CVE-2018-16557

Improper signature verification in Siemens SIMATIC S7-400 CPU 412-1 DP V7 and others

CVSS 8.2 HighEPSS 0.0082 · 57th percentile

Published by the CVE Program (CNA: siemens) at 13 Dec 2018, 16:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Siemens	SIMATIC S7-400 CPU 412-1 DP V7	affected All versions Other versions: unknown
Siemens	SIMATIC S7-400 CPU 412-2 DP V7	affected All versions Other versions: unknown
Siemens	SIMATIC S7-400 CPU 414-2 DP V7	affected All versions Other versions: unknown
Siemens	SIMATIC S7-400 CPU 414-3 DP V7	affected All versions Other versions: unknown
Siemens	SIMATIC S7-400 CPU 414-3 PN/DP V7	affected All versions < V7.0.3 Other versions: unknown
Siemens	SIMATIC S7-400 CPU 414F-3 PN/DP V7	affected All versions < V7.0.3 Other versions: unknown
Siemens	SIMATIC S7-400 CPU 416-2 DP V7	affected All versions Other versions: unknown
Siemens	SIMATIC S7-400 CPU 416-3 DP V7	affected All versions Other versions: unknown
Siemens	SIMATIC S7-400 CPU 416-3 PN/DP V7	affected All versions < V7.0.3 Other versions: unknown
Siemens	SIMATIC S7-400 CPU 416F-2 DP V7	affected All versions Other versions: unknown
Siemens	SIMATIC S7-400 CPU 416F-3 PN/DP V7	affected All versions < V7.0.3 Other versions: unknown
Siemens	SIMATIC S7-400 CPU 417-4 DP V7	affected All versions Other versions: unknown
Siemens	SIMATIC S7-400 CPU 412-2 PN V7	affected All versions < V7.0.3 Other versions: unknown
Siemens	SIMATIC S7-400 H V4.5 and below CPU family (incl. SIPLUS variants)	affected All versions Other versions: unknown
Siemens	SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants)	affected All versions < V6.0.9 Other versions: unknown
Siemens	SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants)	affected All versions Other versions: unknown
Siemens	SIMATIC S7-410 CPU family (incl. SIPLUS variants)	affected All versions < V8.2.1 Other versions: unknown
Siemens	SIPLUS S7-400 CPU 414-3 PN/DP V7	affected All versions < V7.0.3 Other versions: unknown
Siemens	SIPLUS S7-400 CPU 416-3 PN/DP V7	affected All versions < V7.0.3 Other versions: unknown
Siemens	SIPLUS S7-400 CPU 416-3 V7	affected All versions Other versions: unknown
Siemens	SIPLUS S7-400 CPU 417-4 V7	affected All versions Other versions: unknown

Identifiers: CVE-2018-16557
CNA: siemens
Weakness (CWE): CWE-347
Tags: Siemens SIMATIC S7-400 CPU 412-1 DP V7
Siemens SIMATIC S7-400 CPU 412-2 DP V7
Siemens SIMATIC S7-400 CPU 414-2 DP V7
Siemens SIMATIC S7-400 CPU 414-3 DP V7
Siemens SIMATIC S7-400 CPU 414-3 PN/DP V7
Siemens SIMATIC S7-400 CPU 414F-3 PN/DP V7
Siemens SIMATIC S7-400 CPU 416-2 DP V7
Siemens SIMATIC S7-400 CPU 416-3 DP V7
Weak cryptography or TLS
Published: 13 Dec 2018
Updated: 5 Aug 2024

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.2	High	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H/E:P/RL:O/RC:C	CNA (siemens)

CISA KEV Not listed.
EPSS 0.0082, the 57th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 13 Dec 2018. New records show when each source confirmed them.

Sources

References from the CNA

cert-portal.siemens.com/productcert/pdf/ssa-113131.pdf

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.