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VulnerabilityPublished

CVE-2025-68716: KAYSUS KS-WR3600 routers · Missing Authentication

Source CVE Database V5

0

Not known to be exploited · CVSS 8.4 High.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
8.4High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 14% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 8 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

  1. Immediately isolate affected KS-WR3600 routers from untrusted LAN segments and restrict access to trusted administrators only.
  2. Implement strict network segmentation and access control lists (ACLs) to limit LAN access to these devices.
  3. Monitor network traffic for unusual SSH connections or command execution patterns on these routers.
  4. Replace affected routers with models from vendors with secure default configurations if possible.
  5. If replacement is not immediately feasible, consider deploying network-based intrusion prevention systems (IPS) to detect and block unauthorized SSH access attempts.
  6. Engage with KAYSUS support to obtain firmware updates or patches addressing this vulnerability.
  7. Educate network administrators about the risks and ensure physical security of network equipment to prevent unauthorized LAN access.
  8. Review and enhance internal network security policies to prevent unauthorized device access.
  9. Regularly audit router configurations and network access logs for signs of compromise.

Description

KAYSUS KS-WR3600 routers with firmware 1.0.5.9.1 enable the SSH service enabled by default on the LAN interface. The root account is configured with no password, and administrators cannot disable SSH or enforce authentication via the CLI or web GUI. This allows any LAN-adjacent attacker to trivially gain root shell access and execute arbitrary commands with full privileges.

References

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