CVE-2025-68719: KAYSUS KS-WR3600 routers with firmware 1.0.5.9.1 mishandle configuration management

This month

HIGH 8.8MITIGATE

CVE-2025-68719 is a high-severity flaw (CVSS 8.8) affecting ks-wr3600 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

KAYSUS KS-WR3600 routers with firmware 1.0.5.9.1 mishandle configuration management. Once any user is logged in and maintains an active session, an attacker can directly query the backup endpoint and download a full configuration archive. This archive contains sensitive files such as /etc/shadow, enabling credential recovery and potential full compromise of the device.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-200, CWE-552
Published	2026-01-08
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: kaysus

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-08 21:15 UTCPublished CVE record published
2026-06-17 09:59 UTCUpdated Record last modified

kaysus ks-wr3600 firmware MITIGATE

Affected: 1.0.5.9.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.5.9.1

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-68719?

ks-wr3600 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-68719 being exploited?

CVE-2025-68719 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-68719 affect?

CVE-2025-68719 affects ks-wr3600 firmware. Severity is high (CVSS 8.8). KAYSUS KS-WR3600 routers with firmware 1.0.5.9.1 mishandle configuration management. Once any user is logged in and maintains an active session, an attacker can directly query the backup endpoint and download a full configuration archive. T

How urgent is CVE-2025-68719?

Priority 46/100. High severity; Public exploit reference

Related CVEs

CVE-2025-68717 CRITICAL 9.4 MITIGATE KAYSUS KS-WR3600 routers with firmware 1.0.5.9.1 allow authentication bypass during session validation
CVE-2025-68716 HIGH 8.4 MITIGATE KAYSUS KS-WR3600 routers with firmware 1.0.5.9.1 enable the SSH service enabled by default on the LAN interfac

References

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