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NVD Vulnerability Details :
CVE-2026-55706
Analyzed
More InfoOfficial Page
Source-cve@mitre.org
View Known Exploited Vulnerability (KEV) details
Published At-17 Jun, 2026 | 13:20
Updated At-13 Jul, 2026 | 13:54

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

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.15.8MEDIUM
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Primary3.18.3HIGH
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
N/A
Type: Secondary
Version: 3.1
Base score: 5.8
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Type: Primary
Version: 3.1
Base score: 8.3
Base severity: HIGH
Vector:
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Type: N/A
Version:
Base score:
Base severity: N/A
Vector:
CPE Matches
OpenBSD
openbsd
>>openbsd>>Versions up to 7.6(inclusive)
cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-1284Secondarycve@mitre.org
CWE ID: CWE-1284
Type: Secondary
Source: cve@mitre.org
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://blog.argus-systems.ai/blog/openbsd-pap-27-year-auth-bypass.htmlcve@mitre.org
Third Party Advisory
Exploit
https://github.com/openbsd/src/commit/076e2b1c1fc4ac0883a72d3544131ad5cee7adf8cve@mitre.org
Patch
https://www.openwall.com/lists/oss-security/2026/06/16/9cve@mitre.org
Exploit
Mailing List
Patch
Third Party Advisory
https://blog.argus-systems.ai/blog/poc-001-pap-bypass.py134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit
Hyperlink: https://blog.argus-systems.ai/blog/openbsd-pap-27-year-auth-bypass.html
Source: cve@mitre.org
Resource:
Third Party Advisory
Exploit
Hyperlink: https://github.com/openbsd/src/commit/076e2b1c1fc4ac0883a72d3544131ad5cee7adf8
Source: cve@mitre.org
Resource:
Patch
Hyperlink: https://www.openwall.com/lists/oss-security/2026/06/16/9
Source: cve@mitre.org
Resource:
Exploit
Mailing List
Patch
Third Party Advisory
Hyperlink: https://blog.argus-systems.ai/blog/poc-001-pap-bypass.py
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Resource:
Exploit
Change History
0Changes found
Details not found