Vulnerability in Sunhillo Corporation Sureline
CVE-2026-112352
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.
Published .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- www.sunhillo.com/product/sureline/ (product)
- www.vulncheck.com/advisories/sunhillo-sureline-authentication-bypass-via-sessio… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-112352?
- CVE-2026-112352 is a critical-severity vulnerability in Sunhillo Corporation Sureline, classified under Reliance on Cookies without Validation and Integrity Checking. CVSS score: 9.1/10. Published 2026-10-27.
- How severe is CVE-2026-112352?
- Critical severity. CVSS v3 base score is 9.1 out of 10.