CVE-2026-55706

Authentication Bypass via Zero-Length Input in sppp_pap

Published Jun 17, 2026 CVSS 3.1 · 5.8 Medium EPSS < 1% KEV · Not listed
Description
sppp_pap_input in sys/net/if_spppsubr.c in OpenBSD before 076e2b1 allows authentication bypass via certain zero values for lengths.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Authentication Bypass via Zero-Length Input in sppp_pap
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description sppp_pap_input in sys/net/if_spppsubr.c in OpenBSD before 076e2b1 allows authentication bypass via certain zero values for lengths.
First Time appeared Openbsd
Openbsd openbsd
Weaknesses CWE-1284
CPEs cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*
Vendors & Products Openbsd
Openbsd openbsd
References
Metrics cvssV3_1

{'score': 5.8, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Jun 17, 2026, 2:33 PM
Reserved
Jun 17, 2026, 12:53 AM
Status
Analyzed
Published
Jun 17, 2026, 1:20 PM
Modified
Jul 13, 2026, 1:54 PM