Cyber Resilience

CVE-2026-44712

High

Published: 27 May 2026

Published
27 May 2026
Modified
28 May 2026
KEV Added
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Patch
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CVSS Score v3.1 8.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.0015 5.0th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-44712 is a high-severity OS Command Injection (CWE-78) vulnerability. Its CVSS base score is 8.2 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Unix Shell (T1059.004); ranked at the 5.0th 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

pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, a crafted UUID such as $(id>/tmp/rce) in the config causes root RCE when pamusb-conf --reset-pads is run. A USB device with a crafted filesystem UUID (some controllers…

more

allow this) can inject the payload at --add-device time. Also, userName from the XML config is passed to os.system() in pamusb-agent, which invokes a shell. This vulnerability is fixed in 0.8.7.

CWE(s)
CWE-78CWE-88

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
attack.mitre.org →
T1091 Replication Through Removable Media Lateral Movement
Adversaries may move onto systems, possibly those on disconnected or air-gapped networks, by copying malware to removable media and taking advantage of Autorun features when the media is inserted into a system and executes.
attack.mitre.org →
T1204.002 Malicious File Execution
An adversary may rely upon a user opening a malicious file in order to gain execution.
attack.mitre.org →
Why these techniques?

CWE-78 command injection via os.system() and crafted UUID enables Unix shell execution (T1059.004) with root privileges; malicious USB provides initial access vector via removable media (T1091) and user execution (T1204.002).

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

CVEs Like This One

CVE-2026-35585Shared CWE-78, CWE-88
CVE-2026-43943Shared CWE-78, CWE-88
CVE-2025-33206Shared CWE-78
CVE-2026-44465Shared CWE-78
CVE-2026-40527Shared CWE-78
CVE-2026-25063Shared CWE-78
CVE-2026-33874Shared CWE-78
CVE-2026-33310Shared CWE-78
CVE-2025-33228Shared CWE-78
CVE-2026-34714Shared 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