Is CVE-2026-44709 actively exploited?

No active exploitation of CVE-2026-44709 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-44709 be exploited remotely?

No. CVE-2026-44709 requires local access to exploit.

What is the CVSS score of CVE-2026-44709?

CVE-2026-44709 has a CVSS score of 7.8 (HIGH).

HOME VULNERABILITIESCVE-2026-44709

HIGH

CVE-2026-44709

CWE-78Published: May 27, 2026· Updated: Jun 2, 2026

7.8

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:6.8th

Official Description

pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, pamusb-pinentry reads the PINENTRY_FALLBACK_APP environment variable and executes it directly without any validation. Any process that can set environment variables before pamusb-pinentry is invoked can point PINENTRY_FALLBACK_APP at an arbitrary binary or script and have it executed with the privileges of the pam_usb tool chain. This vulnerability is fixed in 0.8.7.

NVD Source

Technical Analysis

CVE-2026-44709 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), availability disruption (denial of service), with a CVSS base score of 7.8.