CVE-2026-40947

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Summary

CVECVE-2026-40947
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-16 00:16:29 UTC
Updated2026-04-17 15:38:09 UTC
DescriptionYubico libfido2 before 1.17.0, python-fido2 before 2.2.0, and yubikey-manager before 5.9.1 have an unintended DLL search path.

Risk And Classification

Primary CVSS: v3.1 2.9 LOW from [email protected]

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

EPSS: 0.000120000 probability, percentile 0.017820000 (date 2026-04-18)

Problem Types: CWE-426 | CWE-426 CWE-426 Untrusted Search Path

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary2.9LOWCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
3.1CNACVSS2.9LOWCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Yubico Libfido2 affected 1.17.0 semver Windows
CNA Yubico Python-fido2 affected 2.2.0 semver Windows
CNA Yubico Yubikey-manager affected 5.9.1 semver Windows

References

ReferenceSourceLinkTags
www.yubico.com/support/security-advisories/ysa-2026-01 [email protected] www.yubico.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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