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Case File

CVE-2019-19521

CRITICAL · CVSS 9.8 EPSS 2.74% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2019-12-05 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

External Security References
packetstormsecurity.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2019-19521
Severity
CRITICAL
CVSS
9.8
EPSS
2.74%

Original NVD Description

libc in OpenBSD 6.6 allows authentication bypass via the -schallenge username, as demonstrated by smtpd, ldapd, or radiusd. This is related to gen/auth_subr.c and gen/authenticate.c in libc (and login/login.c and xenocara/app/xenodm/greeter/verify.c).