Cyber Resilience

CVE-2025-41744

Sprecher-Automation Sprecon-E-C Firmware

Published
02 December 2025
Modified
23 February 2026
Patch / advisory
CVSS Score v3.1 9.1
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS Score 0.0040 33th percentile
Risk Priority 67 floored blend · peak EPSS

Summary

CVE-2025-41744 is a critical-severity Use of Default Cryptographic Key (CWE-1394) vulnerability in Sprecher-Automation Sprecon-E-C Firmware. Its CVSS base score is 9.1 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Private Keys (T1552.004); ranked at the 33th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to CM-6 (Configuration Settings) and SC-12 (Cryptographic Key Establishment and Management) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

Sprecher Automations SPRECON-E series uses default cryptographic keys that allow an unprivileged remote attacker to access all encrypted communications, thereby compromising confidentiality and integrity.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1552.004 Private Keys Credential Access
Adversaries may search for private key certificate files on compromised systems for insecurely stored credentials.
T1552 Unsecured Credentials Credential Access
Adversaries may search compromised systems to find and obtain insecurely stored credentials.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-41742Same product: Sprecher-Automation Sprecon-E-C
CVE-2026-5039Shared CWE-1394
CVE-2024-11619Shared CWE-1394
CVE-2026-54887Shared CWE-1394
CVE-2026-2215Shared CWE-1394
CVE-2024-48956Shared CWE-1394
CVE-2026-20709Shared CWE-1394
CVE-2025-44954Shared CWE-1394
CVE-2024-1275Shared CWE-1394
CVE-2025-26849Shared CWE-1394

Affected Assets

sprecher-automation
sprecon-e-c firmware
all versions
sprecher-automation
sprecon-e-p firmware
all versions
sprecher-automation
sprecon-e-t3 firmware
all versions

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

Cryptographic key establishment and management requires generating and provisioning unique keys rather than relying on manufacturer defaults.

Requiring the most restrictive configuration settings prohibits the use of known default cryptographic keys.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-01 mostly match
prevents

Configuration management directly prohibits default keys via hardened baselines and change control.

PR.AA-01 partial match
prevents

Credential/key management practices eliminate default cryptographic keys for identities and services.

PR.AA-03 partial match
prevents

Strong authentication requirements implicitly disallow default keys but do not address key management itself.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

prevents

Mandates proper key management, directly preventing use of default cryptographic keys.

prevents

Enforces secure configuration baselines that should replace default keys.

prevents

Controls software installation and configuration, reducing risk of default keys being left in place.

prevents

Change-management processes should detect and remediate default cryptographic keys.

none

Requires secure authentication mechanisms that would be undermined by default keys.

References