CVE-2026-27755 | THREATINT

Description

SODOLA SL902-SWTGW124AS firmware versions through 200.1.20 contain a weak session identifier generation vulnerability that allows attackers to forge authenticated sessions by computing predictable MD5-based cookies. Attackers who know or guess valid credentials can calculate the session identifier offline and bypass authentication without completing the login flow, gaining unauthorized access to the device.

PUBLISHED Reserved 2026-02-23 | Published 2026-02-27 | Updated 2026-03-02 | Assigner VulnCheck

CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-330 Use of Insufficiently Random Values

Product status

Default status

unknown

Any version

affected

Credits

Kazuma Matsumoto, a security researcher at GMO Cybersecurity by IERAE, Inc. finder

References

www.sodola-network.com/...igmp-2-5gb-network-home-lab-switch product

www.vulncheck.com/...sl902-swtgw124as-predictable-session-id third-party-advisory

cve.org (CVE-2026-27755)

nvd.nist.gov (CVE-2026-27755)

Download JSON