CVE-2026-55706: High severity OpenBSD OpenBSD vulnerability
Published Jun 17, 2026
·Updated
sppppapinput in sys/net/ifspppsubr.c in OpenBSD before 076e2b1 allows authentication bypass via certain zero values for lengths.
Affected Software
2 affected components
OpenBSD OpenBSD<076e2b1
OpenBSD OpenBSD<=7.6
Remediation
Patch Available
Event History
Jun 17, 2026
CVE Published
via MITRE·12:53 AM
Data Sourced
via MITRE·12:53 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·01:20 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-55706?
The severity of CVE-2026-55706 is medium with a score of 5.8.
2
How do I fix CVE-2026-55706?
To fix CVE-2026-55706, update your OpenBSD installation to the latest version that includes the fix.
3
What type of vulnerability is CVE-2026-55706?
CVE-2026-55706 is an authentication bypass vulnerability in OpenBSD.
4
What software is affected by CVE-2026-55706?
CVE-2026-55706 affects OpenBSD versions prior to 076e2b1.
5
When was CVE-2026-55706 published?
CVE-2026-55706 was published on June 17, 2026.