CVE-2019-19522: n/a vulnerability

CVE-2019-19522: OpenBSD 6.6, in a non-default configuration where S/Key or YubiKey authentication is enabled, allows local...

OpenBSD 6.6, in a non-default configuration where S/Key or YubiKey authentication is enabled, allows local users to become root by leveraging membership in the auth group. This occurs because root's file can be written to /etc/skey or /var/db/yubikey, and need not be owned by root.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 5, 2024, 02:16 UTC (UTC+00:00)

Security readout for executives and security teams

This issue affects OpenBSD 6.6 systems only when S/Key or YubiKey authentication is enabled. A local user with membership in the auth group could gain root privileges. Default configurations appear less exposed, but any affected host represents full system compromise risk. Exposure is likely limited to OpenBSD 6.6 systems using S/Key or YubiKey authentication and granting users membership in the auth group. The source bundle does not identify other affected products or versions. Treat this as high priority for any OpenBSD 6.6 system using S/Key or YubiKey authentication. The business risk is complete host takeover by a local authorized user, but exposure is narrower than a remote default-install flaw. Mitigation focus: Review and apply OpenBSD 6.6 errata guidance for the authentication vulnerabilities.; Remove unnecessary users from the auth group.; Disable S/Key or YubiKey authentication where it is not required..

Prepared: Jun 6, 2026, 03:53 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 4, 2019, 23:33 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://www.openwall.com/lists/oss-security/2019/12/04/5CVE reference · x_refsource_MISC
https://www.openbsd.org/errata66.htmlCVE reference · x_refsource_MISC
20191205 Authentication vulnerabilities in OpenBSDCVE reference · mailing-list, x_refsource_BUGTRAQ

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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