CVE-2022-4332Public exploit

Arbitrary code execution via unenforced secure boot

Published Jun 1, 2023 · Updated Jan 10, 2025

Improper firmware verification in Sprecher Automation SPRECON-E PU244x CPU modules allows physically proximate attackers to execute arbitrary code. The i.MX6 High Assurance Boot configuration detects modified firmware and bootloader images but does not enforce the violation, so altered code still boots. Exploitation requires extended physical access and hardware manipulation, and successful code injection grants full control of the device.

CVSS severity6.8
Medium
EPSS probability0.34%
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

Improper firmware verification in Sprecher Automation SPRECON-E PU244x CPU modules allows physically proximate attackers to execute arbitrary code. The i.MX6 High Assurance Boot configuration detects modified firmware and bootloader images but does not enforce the violation, so altered code still boots. Exploitation requires extended physical access and hardware manipulation, and successful code injection grants full control of the device.

The record

CVE
CVE-2022-4332
Published
Jun 1, 2023
Updated
Jan 10, 2025
Vendor
Sprecher Automation
Product
SPRECON-E
Classifications
CWE-20, CAPEC-533, T1542.001
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 1, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 10, 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=all

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Sprecher Automation · SPRECON-Eversion=all

Published CVSS scores

6.8CERT@VDECVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
CAPEC-533Malicious Manual Software Update
T1542.001System Firmware

Public exploit references

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