CVE-2026-40947

LOW

Yubico libfido2 <1.17.0 - DLL Hijacking

Title source: llm
STIX 2.1

Description

Yubico libfido2 before 1.17.0, python-fido2 before 2.2.0, and yubikey-manager before 5.9.1 have an unintended DLL search path.

Scores

CVSS v3 2.9
EPSS 0.0001
EPSS Percentile 0.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-426
Status published
Products (3)
Yubico/libfido2 < 1.17.0
Yubico/python-fido2 < 2.2.0
Yubico/yubikey-manager < 5.9.1
Published Apr 16, 2026
Tracked Since Apr 16, 2026