Vulnerability · Published Aug 27, 2026 · Assigned by icscert
CVE-2026-78239Xiiaozet LK100W Missing Authentication for Critical Function
Critical 9.8
In plain English
A critical-severity missing authentication in Xiiaozet LK100W from Xiiaozet. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.8%top 44.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Xiiaozet LK100W exposes a critical management function that can be invoked without authentication, allowing a remote attacker to enable administrative services that should be restricted. Successful exploitation may permit unauthorized access to the device.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Xiiaozet | Xiiaozet LK100W | 0 – before 2.1.240 |
Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H