What is CVE-2026-63732?

CVE-2026-63732 is a critical-severity vulnerability in Decolua 9router, classified under OS Command Injection. CVSS score: 9.9/10. Published 2026-07-23.

How severe is CVE-2026-63732?

Critical severity. CVSS v3 base score is 9.9 out of 10.

RCE in Decolua 9router

CVE-2026-63732

9router 0.4.59 (fixed in 0.4.60) contains a chain of vulnerabilities: a hardcoded default password (123456) that authenticates any fresh installation, a bypass of the LOCAL_ONLY network gate via a spoofed Host header, and unvalidated argum…

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Decolua 9router — versions 0, 0.4.60

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-63732?: CVE-2026-63732 is a critical-severity vulnerability in Decolua 9router, classified under OS Command Injection. CVSS score: 9.9/10. Published 2026-07-23.
How severe is CVE-2026-63732?: Critical severity. CVSS v3 base score is 9.9 out of 10.