Sprecher: Sprecon maintenance access with hardcoded credentials

published 2023-06-01 3y ago modified 2026-06-17 4mo ago also EUVD-2022-51686

cvss: 9.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 58%
public exploits: 0; none known

Hardcoded Credentials in multiple SPRECON-E CPU variants of Sprecher Automation allows an remote attacker to take over the device. These accounts should be deactivated according to Sprecher's hardening guidelines.

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CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: last yr. (2025-01-10)

Exploit prediction

0.86% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Sprecher Automation SPRECON-E CPU PU243x
Sprecher Automation SPRECON-E CPU PU244x
Sprecher Automation SPRECON-E CPU MC33/34
Sprecher Automation SPRECON-E CPU SPRECON-EDIR

Classification

Weakness

CWE-798 Use of Hard-coded Credentials

References

sprecher-automation.com /fileadmin/itSecurity/PDF/2022-12_Advisories.pdf
vendor-advisory

Sources

CVE List CVE-2022-4333
NVD CVE-2022-4333

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