CVE-2026-112352Critical· 9.1▾ Midnight

Sunhillo SureLine Authentication Bypass via Session Cookie

▾ Midnight zone — Critical, or high with PoC / in-the-wild

Depth score50/ 100 · Moderate

impact 50.1 · likelihood 0.3 · exploitation 0

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Proof of concept

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Published

Oct 27, 2026

Updated

Oct 28, 2026

CVSS

9.1

Vendor

Sunhillo Corporation

Product

SureLine

CWE

CWE-565

Depth score

50 · Moderate

EPSS

1.3% · p71

Platforms

—

Source

CVEORG

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

decided 2026-10-28

Exploitation: none
Automatable: no
Technical impact: total

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.

EPSS history

Exploit-prediction probability, daily snapshots since Oct 28.

1.3% → 1.3%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

3 events · 1 day

Oct 27, 2026Published
Disclosed via CVEORG
Oct 28, 2026Record revised
Last analysed / modified upstream
Oct 28, 2026EPSS first tracked
1.3%

Sunhillo Corporation CWE-565 #cve.org

Affected

SureLine >= 8.0.0 < 9.1.5

Full technical detail▾

Overview

Sunhillo SureLine before 9.1.5 contains an authentication bypass vulnerability that allows an unauthenticated remote attacker to impersonate any user with an active web session by forging a session cookie containing only a cleartext username with no random identifier or integrity protection. Attackers can guess default account names such as Admin or sftp_user and submit a forged username cookie to satisfy the login check in checkLogin (libwebcmn.so) and networkDiag.cgi, chaining into root command execution.

Affected

SureLine >= 8.0.0 < 9.1.5

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#cve.org