CVE record · CVE-2023-46156

Use after free in Siemens SIMATIC Drive Controller CPU 1504D TF and others

CVSS 7.5 HighEPSS 0.012 · 69th percentile

Published by the CVE Program (CNA: siemens) at 12 Dec 2023, 11:27 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 Drive Controller CPU 1504D TF	affected before V3.1.0 custom Other versions: unknown
Siemens	SIMATIC Drive Controller CPU 1507D TF	affected before V3.1.0 custom Other versions: unknown
Siemens	SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)	affected before V30.1.0 custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1510SP F-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1510SP F-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1510SP F-1 PN	affected before V3.1.0 custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1510SP-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1510SP-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1510SP-1 PN	affected before V3.1.0 custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1511-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1511-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1511-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1511-1 PN	affected before V3.1.0 custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1511C-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1511C-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1511C-1 PN	affected before V3.1.0 custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1511F-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1511F-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1511F-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1511F-1 PN	affected before V3.1.0 custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1511T-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1511T-1 PN	affected before V3.1.0 custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1511TF-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1511TF-1 PN	affected before V3.1.0 custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1512C-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1512C-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1512C-1 PN	affected before V3.1.0 custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1512SP F-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1512SP F-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1512SP F-1 PN	affected before V3.1.0 custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1512SP-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1512SP-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1512SP-1 PN	affected before V3.1.0 custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1513-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1513-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1513-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1513-1 PN	affected before V3.1.0 custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1513F-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1513F-1 PN	affected before * custom Other versions: unknown
Siemens	SIMATIC S7-1500 CPU 1513F-1 PN	affected before * custom Other versions: unknown

And 113 more products. The full list is on the CVE record.

Identifiers: CVE-2023-46156
CNA: siemens
Weakness (CWE): CWE-416
Tags: Siemens SIMATIC Drive Controller CPU 1504D TF
Siemens SIMATIC Drive Controller CPU 1507D TF
Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)
Siemens SIMATIC S7-1500 CPU 1510SP F-1 PN
Siemens SIMATIC S7-1500 CPU 1510SP-1 PN
Siemens SIMATIC S7-1500 CPU 1511-1 PN
Siemens SIMATIC S7-1500 CPU 1511C-1 PN
Siemens SIMATIC S7-1500 CPU 1511F-1 PN
Memory corruption
Published: 12 Dec 2023
Updated: 25 Feb 2026

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

CISA KEV Not listed.
EPSS 0.012, the 69th percentile, on 5 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 12 Dec 2023. New records show when each source confirmed them.

Sources

References from the CNA

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.