Tranzman: Insufficient Verification of Data Authenticity
CVE-2025-63910 is a high-severity insufficient verification of data authenticity vulnerability in Tranzman from Cohesity, with a CVSS 3.1 base score of 7.2 out of 10. It can be exploited remotely over the network by an attacker with administrator privileges, without any action from a user. Affected Tranzman versions: 4.0. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.4% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of Tranzman you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
Version data comes from NVD's product matching. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- HighAdministrator-level access is required first.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (mitre.org).
Official description
An authenticated arbitrary file upload vulnerability in Cohesity TranZman Migration Appliance Release 4.0 Build 14614 allows attackers with Administrator privileges to execute arbitrary code via uploading a crafted patch file.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Insufficient Verification of Data Authenticity
The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
More Insufficient Verification of Data Authenticity vulnerabilities (CWE-345)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- github.com/GregDurys/Cohesity-TranZman-CVEsThird Party Advisory
Technical write-ups (may include proof of concept)
- gist.github.com/GregDurys/74c36c36bef81293a42022758f2736a9Exploit, Third Party Advisory
Other references
Other vulnerabilities in Tranzman
- 7.2 High severity
- 7.5 High severity
- 7.8 High severity
Recent Insufficient Verification of Data Authenticity vulnerabilities
- 7.5 High severity
- 8.8 High severity
- 7.5 High severity
- 7.3 High severity
- 9.0 Critical severity
- 9.1 Critical severity
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