What is CVE-2025-68717?

CVE-2025-68717 is a critical-severity vulnerability in Kaysus Ks-Wr3600, classified under Improper Authentication. CVSS score: 9.4/10. Published 2026-01-08.

How severe is CVE-2025-68717?

Critical severity. CVSS v3 base score is 9.4 out of 10.

Auth bypass in Kaysus Ks-Wr3600

CVE-2025-68717

KAYSUS KS-WR3600 routers with firmware 1.0.5.9.1 allow authentication bypass during session validation. If any user is logged in, endpoints such as /cgi-bin/system-tool accept unauthenticated requests with empty or invalid session values. This design flaw lets attackers piggyback on another user's active session to retrieve sensitive configuration data or execute privileged actions without authentication.

Vulnerability class: Broken Authentication

EPSS: 0.005 (41.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L.

Affected products

Kaysus Ks-wr3600
Kaysus Ks-wr3600_firmware — versions 1.0.5.9.1
N/a — versions n/a

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

cve@mitre.org (Product)
cve@mitre.org (Exploit)
cve@mitre.org (Third Party Advisory)

Frequently asked questions

What is CVE-2025-68717?: CVE-2025-68717 is a critical-severity vulnerability in Kaysus Ks-Wr3600, classified under Improper Authentication. CVSS score: 9.4/10. Published 2026-01-08.
How severe is CVE-2025-68717?: Critical severity. CVSS v3 base score is 9.4 out of 10.