VulnerabilityAnalyzed

CVE-2025-68717

KAYSUS KS-WR3600 routers with firmware 1.0.5.9.1 allow authentication bypass during session validation.

CRITICAL 9.4EPSS 0.57%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.57%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

CVSS 3.1: 9.4 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
EPSS: 0.57% probability · 46th percentile
CISA KEV: Not listed
Weakness: CWE-287
Affected: kaysus/ks-wr3600 firmware
Source: cve@mitre.org

References

https://github.com/actuator/cve/blob/main/KAYSUS/CVE-2025-68717.txtThird Party Advisory
https://github.com/actuator/cve/tree/main/KAYSUSExploit
https://www.kaysus.com/ks_wr3600__wifi_7_be3600_wireless_router.htmlProduct

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.