Cyber Resilience

CVE-2025-63911

RCE in Cohesity Tranzman 4.0

Published
03 March 2026
Modified
05 March 2026
CVSS Score v3.1 7.2
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.023 82th percentile
Risk Priority 57 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

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 Command and Scripting Interpreter (T1059); ranked in the top 18% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

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.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

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

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
T1059.003 Windows Command Shell Execution
Adversaries may abuse the Windows command shell for execution.
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
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.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-67840Same product: Cohesity Tranzman
CVE-2025-63909Same product: Cohesity Tranzman
CVE-2025-63912Same product: Cohesity Tranzman
CVE-2025-63910Same product: Cohesity Tranzman
CVE-2025-8628Shared CWE-78
CVE-2024-22836Shared CWE-78
CVE-2023-25826Shared CWE-78
CVE-2026-65590Shared CWE-78
CVE-2026-72880Shared CWE-78
CVE-2024-28125Shared CWE-78

Affected Assets

cohesity
tranzman
4.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V1.2.5
  • V1.2.8
  • V15.2.5

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation can discover missing or incorrect command sanitization during development.

Input validation directly neutralizes or rejects special characters that would otherwise alter OS command structure.

Least privilege reduces the permissions available to any process that could be subverted by injected commands.

Least functionality restricts available OS commands and interpreters, limiting the blast radius of injection.

Secure engineering principles require proper neutralization of untrusted input before command construction.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

PR.PS-06's SDLC practices directly require secure coding and input handling that blocks command-injection defects, yet the single broad outcome leaves many specific neutralization vectors and verification gaps unaddressed.

PR.PS-02 partial match
prevents

Routine patching/maintenance can remediate known command-injection CVEs in dependencies (partial forward) but does nothing to stop developers from introducing improper neutralization in custom code (none reverse).

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing and code review target insecure use of operating-system command interfaces, catching command-injection flaws introduced during development.

References