CVE-2025-63912 Cohesity CVE debrief

Who should care

Administrators and security teams responsible for Cohesity TranZman Migration Appliance deployments, especially any environment running Release 4.0 Build 14614 or systems that depend on it for migration workflows. Credential exposure risk also makes IAM and incident response teams relevant stakeholders.

Technical summary

The NVD entry maps the issue to CWE-327 (Use of a Broken or Risky Cryptographic Algorithm). The vulnerability description states that the appliance uses weak cryptography for data encryption, making reversal of the encryption trivial for an attacker and exposing credentials. The vulnerable CPE in the record is cohesity:tranzman:4.0:build14614. No exploit details beyond the advisory references were provided in the supplied corpus.

Defensive priority

High. Treat as a credential-exposure issue with potential downstream access impact. Prioritize validation of whether the affected build is deployed, then reduce exposure by removing or isolating the vulnerable instance and rotating any credentials that may have been protected by the weak encryption.

Recommended defensive actions

• Identify whether Cohesity TranZman Migration Appliance Release 4.0 Build 14614 is present in your environment.
• If affected, minimize exposure by isolating the appliance and restricting network access until remediation is confirmed.
• Review any credentials or sensitive data stored or handled by the appliance and rotate secrets that may have been exposed.
• Check the official CVE/NVD entries and the linked third-party advisory resources for remediation guidance and any vendor updates.
• Monitor authentication logs and dependent systems for signs that exposed credentials were used improperly.

Evidence notes

This debrief is based on the supplied CVE record and NVD metadata only. Supported facts include the published and modified dates, the affected CPE (cohesity:tranzman:4.0:build14614), the CVSS vector and score, and the CWE-327 classification. The corpus also includes two MITRE-sourced third-party links, one tagged Exploit and Third Party Advisory, but their contents were not independently summarized here. No vendor patch status or exploit mechanics were assumed beyond the provided description.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.