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TI-2019-06997 Aliases CVE-2019-9578GHSA-6c8w-rwwq-6qqh

In devs.c in Yubico libu2f-host before 1.1.8, the response to init is misparsed, leaking…

Priority LOW 37CWE-908Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-908 and the CVSS impact.

Summary

In devs.c in Yubico libu2f-host before 1.1.8, the response to init is misparsed, leaking uninitialized stack memory back to the device.

Why it matters now

EPSS 0.02296 83rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:yubico:libu2f-host:*:*:*:*:*:*:*:*before 1.1.8VulnerableYubico
  • cpe:2.3:a:yubico:libu2f-host:*:*:*:*:*:*:*:* Versions before 1.1.8 Vulnerable ·Yubico

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-9578
  2. 2026-10-03 Alias added: GHSA-6c8w-rwwq-6qqh

References

Patch 1

Advisory 6

Other 1

  • TI-2018-14397 Yubico libu2f-host 1.1.6 contains unchecked buffers in devs.c, which could enable a… CVSS 3.0MEDIUM 6.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences