Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-55706

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
17/06/2026
Last modified:
13/07/2026

Description

sppp_pap_input in sys/net/if_spppsubr.c in OpenBSD before 076e2b1 allows authentication bypass via certain zero values for lengths.

Impact

Vector 3.x
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L CVSS v3.1 Severity and Metrics:

Base Score: 5.80 MEDIUM
Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L

Attack Vector (AV): Adjacent
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): Low

Base Score 3.x
5.80
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:* 7.6 (including)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools