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Critical 9.8Published Aug 27, 2026
CVE-2026-78239Xiiaozet LK100W Missing Authentication for Critical Function
Updated under an hour ago ()
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It affects Xiiaozet LK100W. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-306
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- icscert
- NVD analysis
- Deferred
- Record last updated
- Aug 28, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Xiiaozet Xiiaozet LK100W xiiaozet:lk100w (from the name) | before 2.1.240; 2.1.240 not affected | CNA record |
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-239-01
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-239-01.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.