Northern.tech Mender Client 5 before 5.0.4 allows a Cryptographic signature verification bypass.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00018.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a n/a affected
Version Status Constraints
n/a affected —

No data.

No data.

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://mender.io/blog/cve-2025-67903-signature-verification-bypass-in-mender-client cve-icon cve-icon
https://northern.tech cve-icon cve-icon
History

Fri, 29 May 2026 20:45:00 +0000

Type Values Removed Values Added
Title Mender Client Signature Verification Bypass

Fri, 29 May 2026 19:15:00 +0000

Type Values Removed Values Added
Title Cryptographic Signature Verification Bypass in Mender Client
Weaknesses CWE-320
CWE-327

Fri, 29 May 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 29 May 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-347
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

Wed, 27 May 2026 21:15:00 +0000

Type Values Removed Values Added
Title Cryptographic Signature Verification Bypass in Mender Client
Weaknesses CWE-320
CWE-327

Wed, 27 May 2026 17:45:00 +0000

Type Values Removed Values Added
Description Northern.tech Mender Client 5 before 5.0.4 allows a Cryptographic signature verification bypass.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-29T15:47:42.405Z

Reserved: 2025-12-15T00:00:00.000Z

Link: CVE-2025-67903

cve-icon Vulnrichment

Updated: 2026-05-29T15:47:37.917Z

cve-icon NVD

Status : Received

Published: 2026-05-27T18:16:21.507

Modified: 2026-05-29T16:16:22.147

Link: CVE-2025-67903

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-29T20:30:07Z

Weaknesses