Privilege escalation in Cohesity Tranzman
CVE-2025-63909
Incorrect access control in the component /opt/SRLtzm/bin/TapeDumper of Cohesity TranZman Migration Appliance Release 4.0 Build 14614 allows attackers to escalate privileges to root and read and write arbitrary files.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (23.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 23.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Cohesity Tranzman — versions 4.0
Weakness classification (CWE)
References
- gist.github.com/GregDurys/d402038147e36de5908159d9722072ef (Exploit, Third Party Advisory)
- github.com/GregDurys/Cohesity-TranZman-CVEs (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-63909?
- CVE-2025-63909 is a high-severity vulnerability in Cohesity Tranzman, classified under Improper Privilege Management. CVSS score: 7.2/10. Published 2026-03-03.
- How severe is CVE-2025-63909?
- High severity. CVSS v3 base score is 7.2 out of 10.