CVE-2025-63911

HighPublic PoCRCE

Published: 03 March 2026

Published

03 March 2026

Modified

05 March 2026

KEV Added

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Patch

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CVSS Score v3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0023 46.0th percentile

Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-63911 is a high-severity OS Command Injection (CWE-78) vulnerability in Cohesity Tranzman. Its CVSS base score is 7.2 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 46.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and AC-6 (Least Privilege).

Deeper analysis

CVE-2025-63911 is an authenticated command injection vulnerability (CWE-78) in Cohesity TranZman Migration Appliance Release 4.0 Build 14614. The issue allows injection of operating system commands through an authenticated interface. It carries a CVSS v3.1 base score of 7.2 (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H) and was published on 2026-03-03T18:16:23.773.

A high-privileged user (PR:H) can exploit this vulnerability remotely over the network (AV:N) with low attack complexity (AC:L) and no user interaction required (UI:N). Successful exploitation enables arbitrary command execution on the appliance, resulting in high impacts to confidentiality, integrity, and availability (C:H/I:H/A:H) within the unchanged security scope (S:U).

Mitigation details, including any available patches or advisories, are provided in the following references: https://gist.github.com/GregDurys/8b7a3022c04b6cee8c1e1af04f5671b2 and https://github.com/GregDurys/Cohesity-TranZman-CVEs. Security practitioners should consult these sources for vendor-specific remediation guidance.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2025-208243

Vulnerability details

Cohesity TranZman Migration Appliance Release 4.0 Build 14614 was discovered to contain an authenticated command injection vulnerability.

CWE(s): CWE-78

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1059 Command and Scripting Interpreter Execution

Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.

attack.mitre.org →

Why these techniques?

Authenticated remote OS command injection (CWE-78) directly enables exploitation of the public-facing appliance for initial access and arbitrary command execution via shell interpreters.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1