CVE-2026-40947 — LOW (2.9) — White Hats Nepal

Vulnerability 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.

CVSS Score

2.9

LOW

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-426

References

https://www.yubico.com/support/security-advisories/ysa-2026-01/

FAQ

What is CVE-2026-40947?

CVE-2026-40947 is a vulnerability with a CVSS score of 2.9 (LOW). 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.

How severe is CVE-2026-40947?

CVE-2026-40947 has been rated LOW with a CVSS base score of 2.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-40947?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.