Cyber Resilience

CVE-2026-45369

HighRCE

Published: 14 May 2026

Published
14 May 2026
Modified
16 May 2026
KEV Added
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Patch
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CVSS Score v3.1 8.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS Score 0.0027 18.9th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-45369 is a high-severity OS Command Injection (CWE-78) vulnerability. Its CVSS base score is 8.3 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique PowerShell (T1059.001); ranked at the 18.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability details

python-utcp is the python implementation of UTCP. Prior to 1.1.3, the _substitute_utcp_args method in cli_communication_protocol.py inserts user-controlled tool_args values directly into shell command strings without any sanitization or escaping. These commands are then executed via /bin/bash -c (Unix) or powershell.exe…

more

-Command (Windows), allowing an attacker to inject arbitrary shell commands. This vulnerability is fixed in 1.1.3.

CWE(s)
CWE-78

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
attack.mitre.org →
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
attack.mitre.org →
Why these techniques?

Direct OS command injection into bash/powershell via unsanitized user input (CWE-78).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2024-55590Shared CWE-78
CVE-2026-45629Shared CWE-78
CVE-2026-45630Shared CWE-78
CVE-2025-34227Shared CWE-78
CVE-2026-1460Shared CWE-78
CVE-2025-22606Shared CWE-78
CVE-2026-26280Shared CWE-78
CVE-2026-31386Shared CWE-78
CVE-2024-57019Shared CWE-78
CVE-2026-45152Shared CWE-78

Affected Assets

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-27 Platform-independent Applications
addresses: CWE-78

Platform-independent apps typically execute inside a managed runtime or sandbox that restricts direct OS command execution, reducing the ability to exploit OS command injection.

SI-10 Information Input Validation
addresses: CWE-78

Validates inputs to block special elements that would alter OS command execution.

References