HIGH
CVE-2025-63909
Published: March 3, 2026· Updated: Mar 5, 2026
7.8
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:10.4th
Official Description
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.
Technical Analysis
CVE-2025-63909 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Vendors & Products
cohesity1 product
tranzman
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (2)
→
https://gist.github.com/GregDurys/d402038147e36de5908159d9722072efThird Party Advisory · Exploit
→
https://github.com/GregDurys/Cohesity-TranZman-CVEsThird Party Advisory
Quick Facts
CVE IDCVE-2025-63909
CVSS Score7.8 / 10
SeverityHIGH
CISA KEVNo
EPSS (30d)0.04%
Affected1 vendor
PublishedMar 3, 2026
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2025-63909 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.