How severe is CVE-2025-67903?

CVE-2025-67903 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-67903 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-67903?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-67903 have an EU (EUVD) identifier?

Yes. CVE-2025-67903 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209975.

When was CVE-2025-67903 published?

CVE-2025-67903 was published on 2026-05-27 and last updated on 2026-06-17.

CVE-2025-67903

CVE-2025-67903 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-347.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-209975
Weakness: CWE-347
Published: 2026-05-27
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2025-67903?: Northern.tech Mender Client 5 before 5.0.4 allows a Cryptographic signature verification bypass.
How severe is CVE-2025-67903?: CVE-2025-67903 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-67903 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-67903?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-67903 have an EU (EUVD) identifier?: Yes. CVE-2025-67903 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209975.
When was CVE-2025-67903 published?: CVE-2025-67903 was published on 2026-05-27 and last updated on 2026-06-17.

References

Other CWE-347 (Improper Verification of Cryptographic Signature) vulnerabilities

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CVE-2022-24884 — Critical (CVSS 10.0): ecdsautils is a tiny collection of programs used for ECDSA (keygen, sign, verify). `ecdsa_verify_[prepare_]legacy()`…
CVE-2021-33885 — Critical (CVSS 10.0): An Insufficient Verification of Data Authenticity vulnerability in B. Braun SpaceCom2 prior to 012U000062 allows a…

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