CVE-2026-47272
pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, the pusb_pad_compare() function in src/pa
CVSS
7.1
Alto
EPSS
0.1%
p2
KEV
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Exploit Today
1
0-100
Publicado: 27 may 2026 · Última mod.: 26 oct 2026 · CWE-287 · CWE-908
0.1%EPSS · 30 días0.2%
2026-10-052026-11-01
pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, the pusb_pad_compare() function in src/pad.c only verified that the user-side pad (~/.pamusb/device.pad) could be read, but did not enforce that the system-side pad (the pad file on the USB device) was also present and readable. If the user-side pad was deleted or unreadable, the function returned a failure that was treated as non-fatal in certain code paths, allowing authentication to succeed without the USB device being verified. A local user can delete their own ~/.pamusb/device.pad to remove the USB device requirement and authenticate without the physical device. This vulnerability is fixed in 0.9.0.
CVECVSSEPSSKEVRExplotTítuloVis.
CVE-2026-1205748.1 ALT—
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