CVE-2021-46880

CRITICAL

LibreSSL <3.4.2/OpenBSD <7.0 - Auth Bypass

Title source: llm
STIX 2.1

Description

x509/x509_verify.c in LibreSSL before 3.4.2, and OpenBSD before 7.0 errata 006, allows authentication bypass because an error for an unverified certificate chain is sometimes discarded.

References (4)

Core 4

Scores

CVSS v3 9.8
EPSS 0.0013
EPSS Percentile 31.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-295
Status published
Products (2)
openbsd/libressl < 3.4.2
openbsd/openbsd < 7.0
Published Apr 15, 2023
Tracked Since Feb 18, 2026