CVE-2025-31929

Physical code execution via untrusted M0 firmware

Published May 13, 2025 · Updated May 13, 2025

Missing hardware root of trust in Siemens VersiCharge AC Series all versions allows physically proximate attackers to execute arbitrary code. The M0 hardware lacks an immutable root of trust, allowing manipulated M0 firmware to run without a hardware-anchored authenticity guarantee. Physical access to the charger is required, and the documented consequence is unauthorized code execution that compromises device integrity.

CVSS severity4.2
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Missing hardware root of trust in Siemens VersiCharge AC Series all versions allows physically proximate attackers to execute arbitrary code. The M0 hardware lacks an immutable root of trust, allowing manipulated M0 firmware to run without a hardware-anchored authenticity guarantee. Physical access to the charger is required, and the documented consequence is unauthorized code execution that compromises device integrity.

The record

CVE
CVE-2025-31929
Published
May 13, 2025
Updated
May 13, 2025
Vendor
Siemens
Product
UL Commercial Child 48A BA Compliant
Classifications
CWE-1326, T1542.002
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 13, 2025CVE publishedPublication date reported by the CVE source.
  2. May 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <*

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Siemens · UL Commercial Child 48A BA Compliantversion=0 <*
Siemens · UL Commercial Parent 48A, 15118, 25ftversion=0 <*
Siemens · VersiCharge Blue 80A AC Cellularversion=0 <*
Siemens · UL Commercial Parent 48A with Simcard BAversion=0 <*
Siemens · UL Commercial Child 48A w/ 15118 HWversion=0 <*
Siemens · IEC ERK 3Ph 22 kW Parent socket incl. SIversion=0 <*
Siemens · VersiChargeversion=0 <*
Siemens · UL Commercial Parent 40A with Simcardversion=0 <*
Siemens · UL Resi High End 40A w/15118 Hwversion=0 <*
Siemens · UL Commercial Parent 48A,15118 25ft Simversion=0 <*
Siemens · UL Commercial Cellular 48A NTEPversion=0 <*
Siemens · UL Commercial Child 40A w/ 15118 HWversion=0 <*
Siemens · UL Commercial Parent 48A (USPS)version=0 <*
Siemens · UL Resi High End 48A w/15118 Hwversion=0 <*
Siemens · UL Commercial Parent 48A BA Compliantversion=0 <*

Published CVSS scores

4.1Siemens ProductCERTCVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
4.2Siemens ProductCERTCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1326Missing Immutable Root of Trust in Hardware
T1542.002Pre-OS Boot: Component Firmware

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo