How severe is CVE-2025-63912?

CVE-2025-63912 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-63912 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-63912?

CVE-2025-63912 affects Cohesity Tranzman. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-63912?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-63912 have an EU (EUVD) identifier?

Yes. CVE-2025-63912 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208244.

When was CVE-2025-63912 published?

CVE-2025-63912 was published on 2026-03-03 and last updated on 2026-06-17.

CVE-2025-63912

CVE-2025-63912 is a high-severity vulnerability in Cohesity Tranzman with a CVSS 3.x base score of 7.5. 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-327.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-208244
Weakness: CWE-327
Affected product: Cohesity Tranzman
Published: 2026-03-03
Last modified: 2026-06-17

Description

Cohesity TranZman Migration Appliance Release 4.0 Build 14614 was discovered to use a weak cryptography algorithm for data encryption, allowing attackers to trivially reverse the encyption and expose credentials.

Frequently asked questions

What is CVE-2025-63912?: Cohesity TranZman Migration Appliance Release 4.0 Build 14614 was discovered to use a weak cryptography algorithm for data encryption, allowing attackers to trivially reverse the encyption and expose credentials.
How severe is CVE-2025-63912?: CVE-2025-63912 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-63912 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-63912?: CVE-2025-63912 affects Cohesity Tranzman. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-63912?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-63912 have an EU (EUVD) identifier?: Yes. CVE-2025-63912 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208244.
When was CVE-2025-63912 published?: CVE-2025-63912 was published on 2026-03-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cohesity:tranzman:4.0:build14614:*:*:*:*:*:*

More vulnerabilities in Cohesity Tranzman

CVE-2025-67840 — High (CVSS 7.2): Multiple authenticated OS command injection vulnerabilities exist in the Cohesity (formerly Stone Ram) TranZman 4.0…
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