CVE-2025-63909

Name: CVE-2025-63909
Creator: NVD / NIST
Published: 2026-03-03T18:16:23.48+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.33%

Last modified Jun 17, 2026

CVE-2025-63909 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.33%

24.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-269

Affected Software

Vendor	Product	Versions	Update
Cohesity	Tranzman	4.0	Build14614

References

https://gist.github.com/GregDurys/d402038147e36de5908159d9722072efExploit, Third Party Advisory
https://github.com/GregDurys/Cohesity-TranZman-CVEsThird Party Advisory

Timeline

Published: Mar 3, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-63909?

How severe is CVE-2025-63909?

CVE-2025-63909 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2025-63909?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-63909?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST