Is CVE-2026-47274 actively exploited?

No active exploitation of CVE-2026-47274 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-47274 be exploited remotely?

No. CVE-2026-47274 requires local access to exploit.

What is the CVSS score of CVE-2026-47274?

CVE-2026-47274 has a CVSS score of 6.3 (MEDIUM).

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MEDIUM

CVE-2026-47274

CWE-427Published: May 27, 2026· Updated: May 28, 2026

6.3

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:5.9th

Official Description

pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, multiple pam_usb helper tools resolved external binaries through the PATH environment variable rather than using absolute paths. An attacker who can influence the process environment during PAM authentication or tool execution could substitute malicious binaries. The affected tools are pamusb-check (src/tmux.c), pamusb-conf (tools/pamusb-conf), and pamusb-keyring-unlock-gnome (tools/pamusb-keyring-unlock-gnome). This vulnerability is fixed in 0.9.0.

NVD Source

Technical Analysis

CVE-2026-47274 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 6.3.